31294317604 has 135 divisors (see below), whose sum is σ = 65516057985. Its totient is φ = 13076595840.

The previous prime is 31294317577. The next prime is 31294317641. The reversal of 31294317604 is 40671349213.

The square root of 31294317604 is 176902.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 24364088100 + 6930229504 = 156090^2 + 83248^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 727774807 + ... + 727774849.

Almost surely, 2^31294317604 is an apocalyptic number.

31294317604 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31294317604 is the 176902-nd square number.

It is an amenable number.

31294317604 is an abundant number, since it is smaller than the sum of its proper divisors (34221740381).

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

31294317604 is an equidigital number, since it uses as much as digits as its factorization.

31294317604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 31294317604 in words is "thirty-one billion, two hundred ninety-four million, three hundred seventeen thousand, six hundred four".