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64434546131401 = 6119014547122203
BaseRepresentation
bin11101010011010010101100…
…01110111100000111001001
322110010212211022021220011101
432221221112032330013021
531421143422302201101
6345012453304101401
716400146056215035
oct1651512616740711
9273125738256141
1064434546131401
11195925a0538996
127287a1b164861
1329c51c8186414
1411ca911d5b1c5
1576b155232401
hex3a9a563bc1c9

64434546131401 has 16 divisors (see below), whose sum is σ = 65540247887808. Its totient is φ = 63330453288000.

The previous prime is 64434546131377. The next prime is 64434546131429. The reversal of 64434546131401 is 10413164543446.

It is a cyclic number.

It is not a de Polignac number, because 64434546131401 - 27 = 64434546131273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64434546131801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527213566 + ... + 527335768.

It is an arithmetic number, because the mean of its divisors is an integer number (4096265492988).

Almost surely, 264434546131401 is an apocalyptic number.

64434546131401 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

64434546131401 is a deficient number, since it is larger than the sum of its proper divisors (1105701756407).

64434546131401 is a wasteful number, since it uses less digits than its factorization.

64434546131401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128712.

The product of its (nonzero) digits is 1658880, while the sum is 46.

The spelling of 64434546131401 in words is "sixty-four trillion, four hundred thirty-four billion, five hundred forty-six million, one hundred thirty-one thousand, four hundred one".

Divisors: 1 61 1901 4547 115961 122203 277367 7454383 8643847 232307903 527274667 555657041 14170782083 33895079501 1056304034941 64434546131401