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1689119976960 = 293251316733769
BaseRepresentation
bin11000100101000111011…
…001010110111000000000
312222110220200020101102200
4120211013121112320000
5210133304203230320
63331545423113200
7233014652623533
oct30450731267000
95873820211380
101689119976960
115a1396212209
12233442a42800
13c338b627710
145ba7a78ca1a
152de1057d290
hex18947656e00

1689119976960 has 480 divisors, whose sum is σ = 6337801229760. Its totient is φ = 413281419264.

The previous prime is 1689119976959. The next prime is 1689119977009. The reversal of 1689119976960 is 696799119861.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50002956 + ... + 50036724.

It is an arithmetic number, because the mean of its divisors is an integer number (13203752562).

Almost surely, 21689119976960 is an apocalyptic number.

1689119976960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1689119976960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3168900614880).

1689119976960 is an abundant number, since it is smaller than the sum of its proper divisors (4648681252800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1689119976960 is a wasteful number, since it uses less digits than its factorization.

1689119976960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33978 (or 33959 counting only the distinct ones).

The product of its (nonzero) digits is 79361856, while the sum is 72.

The spelling of 1689119976960 in words is "one trillion, six hundred eighty-nine billion, one hundred nineteen million, nine hundred seventy-six thousand, nine hundred sixty".