31604503374 has 80 divisors (see below), whose sum is σ = 72422019648. Its totient is φ = 10296756288.

The previous prime is 31604503373. The next prime is 31604503409. The reversal of 31604503374 is 47330540613.

31604503374 is a `hidden beast` number, since 316 + 0 + 4 + 5 + 0 + 337 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31604503373) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6675112 + ... + 6679844.

Almost surely, 2^31604503374 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31604503374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36211009824).

31604503374 is an abundant number, since it is smaller than the sum of its proper divisors (40817516274).

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

31604503374 is a wasteful number, since it uses less digits than its factorization.

31604503374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5671 (or 5662 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The spelling of 31604503374 in words is "thirty-one billion, six hundred four million, five hundred three thousand, three hundred seventy-four".