31607375480 has 32 divisors (see below), whose sum is σ = 71130234240. Its totient is φ = 12640525440.

The previous prime is 31607375479. The next prime is 31607375489. The reversal of 31607375480 is 8457370613.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31607375489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143210 + ... + 289350.

It is an arithmetic number, because the mean of its divisors is an integer number (2222819820).

Almost surely, 2^31607375480 is an apocalyptic number.

It is an amenable number.

31607375480 is an abundant number, since it is smaller than the sum of its proper divisors (39522858760).

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

31607375480 is a wasteful number, since it uses less digits than its factorization.

31607375480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151559 (or 151555 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 31607375480 in words is "thirty-one billion, six hundred seven million, three hundred seventy-five thousand, four hundred eighty".