925017974898381 has 576 divisors, whose sum is σ = 1850281462848000. Its totient is φ = 441177142855680.

The previous prime is 925017974898359. The next prime is 925017974898389. The reversal of 925017974898381 is 183898479710529.

925017974898381 is a `hidden beast` number, since 9 + 2 + 5 + 0 + 17 + 97 + 489 + 8 + 38 + 1 = 666.

It is not a de Polignac number, because 925017974898381 - 2²² = 925017970704077 is a prime.

It is a super-2 number, since 2×925017974898381² (a number of 31 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (81) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 925017974898381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (925017974898389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 53490882171 + ... + 53490899463.

Almost surely, 2^{925017974898381} is an apocalyptic number.

925017974898381 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

925017974898381 is an abundant number, since it is smaller than the sum of its proper divisors (925263487949619).

925017974898381 is a wasteful number, since it uses less digits than its factorization.

925017974898381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17487 (or 17439 counting only the distinct ones).

The product of its (nonzero) digits is 2194698240, while the sum is 81.

The spelling of 925017974898381 in words is "nine hundred twenty-five trillion, seventeen billion, nine hundred seventy-four million, eight hundred ninety-eight thousand, three hundred eighty-one".