31893489925 has 48 divisors (see below), whose sum is σ = 45432984960. Its totient is φ = 21982752000.

The previous prime is 31893489911. The next prime is 31893489949. The reversal of 31893489925 is 52998439813.

It is not a de Polignac number, because 31893489925 - 2¹¹ = 31893487877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 666295 + ... + 712555.

It is an arithmetic number, because the mean of its divisors is an integer number (946520520).

Almost surely, 2^31893489925 is an apocalyptic number.

It is an amenable number.

31893489925 is a deficient number, since it is larger than the sum of its proper divisors (13539495035).

31893489925 is a wasteful number, since it uses less digits than its factorization.

31893489925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46414 (or 46409 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 61.

The spelling of 31893489925 in words is "thirty-one billion, eight hundred ninety-three million, four hundred eighty-nine thousand, nine hundred twenty-five".