31604326152 has 96 divisors (see below), whose sum is σ = 94875505920. Its totient is φ = 8738513280.

The previous prime is 31604326139. The next prime is 31604326163. The reversal of 31604326152 is 25162340613.

It is a super-2 number, since 2×31604326152² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 397003 + ... + 469914.

It is an arithmetic number, because the mean of its divisors is an integer number (988286520).

Almost surely, 2^31604326152 is an apocalyptic number.

It is an amenable number.

31604326152 is an abundant number, since it is smaller than the sum of its proper divisors (63271179768).

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

31604326152 is a wasteful number, since it uses less digits than its factorization.

31604326152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866971 (or 866960 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 31604326152 its reverse (25162340613), we get a palindrome (56766666765).

The spelling of 31604326152 in words is "thirty-one billion, six hundred four million, three hundred twenty-six thousand, one hundred fifty-two".