1683025900920 has 384 divisors, whose sum is σ = 6740510999040. Its totient is φ = 354656517120.

The previous prime is 1683025900817. The next prime is 1683025900921. The reversal of 1683025900920 is 290095203861.

1683025900920 is a `hidden beast` number, since 1 + 6 + 8 + 30 + 2 + 590 + 0 + 9 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683025900921) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26536687 + ... + 26600033.

It is an arithmetic number, because the mean of its divisors is an integer number (17553414060).

Almost surely, 2^{1683025900920} is an apocalyptic number.

1683025900920 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 1683025900920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3370255499520).

1683025900920 is an abundant number, since it is smaller than the sum of its proper divisors (5057485098120).

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

1683025900920 is a wasteful number, since it uses less digits than its factorization.

1683025900920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64195 (or 64188 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 1683025900920 in words is "one trillion, six hundred eighty-three billion, twenty-five million, nine hundred thousand, nine hundred twenty".