31604129223387 has 16 divisors (see below), whose sum is σ = 48584856053760. Its totient is φ = 17899683806592.

The previous prime is 31604129223319. The next prime is 31604129223391. The reversal of 31604129223387 is 78332292140613.

It is not a de Polignac number, because 31604129223387 - 2⁸ = 31604129223131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31604129223307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6659106187 + ... + 6659110932.

It is an arithmetic number, because the mean of its divisors is an integer number (3036553503360).

Almost surely, 2^{31604129223387} is an apocalyptic number.

31604129223387 is a deficient number, since it is larger than the sum of its proper divisors (16980726830373).

31604129223387 is a wasteful number, since it uses less digits than its factorization.

31604129223387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13318217242.

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 31604129223387 in words is "thirty-one trillion, six hundred four billion, one hundred twenty-nine million, two hundred twenty-three thousand, three hundred eighty-seven".