31604040604 has 12 divisors (see below), whose sum is σ = 58560428304. Its totient is φ = 14872489664.

The previous prime is 31604040581. The next prime is 31604040617. The reversal of 31604040604 is 40604040613.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232382584 + ... + 232382719.

It is an arithmetic number, because the mean of its divisors is an integer number (4880035692).

Almost surely, 2^31604040604 is an apocalyptic number.

31604040604 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31604040604 is a deficient number, since it is larger than the sum of its proper divisors (26956387700).

31604040604 is a wasteful number, since it uses less digits than its factorization.

31604040604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464765324 (or 464765322 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Subtracting 31604040604 from its reverse (40604040613), we obtain a palindrome (9000000009).

The spelling of 31604040604 in words is "thirty-one billion, six hundred four million, forty thousand, six hundred four".