925938286821 has 24 divisors (see below), whose sum is σ = 1378022938880. Its totient is φ = 614474510400.

The previous prime is 925938286813. The next prime is 925938286913. The reversal of 925938286821 is 128682839529.

It is not a de Polignac number, because 925938286821 - 2³ = 925938286813 is a prime.

It is a super-2 number, since 2×925938286821² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (925938286621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74660221 + ... + 74672621.

Almost surely, 2^925938286821 is an apocalyptic number.

It is an amenable number.

925938286821 is a deficient number, since it is larger than the sum of its proper divisors (452084652059).

925938286821 is an frugal number, since it uses more digits than its factorization.

925938286821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25034 (or 12627 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 63.

The spelling of 925938286821 in words is "nine hundred twenty-five billion, nine hundred thirty-eight million, two hundred eighty-six thousand, eight hundred twenty-one".