31375077672 has 64 divisors (see below), whose sum is σ = 79424271360. Its totient is φ = 10326948800.

The previous prime is 31375077661. The next prime is 31375077683. The reversal of 31375077672 is 27677057313.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31375077661) and next prime (31375077683).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5995297 + ... + 6000527.

It is an arithmetic number, because the mean of its divisors is an integer number (1241004240).

Almost surely, 2^31375077672 is an apocalyptic number.

It is an amenable number.

31375077672 is an abundant number, since it is smaller than the sum of its proper divisors (48049193688).

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

31375077672 is a wasteful number, since it uses less digits than its factorization.

31375077672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8334 (or 8330 counting only the distinct ones).

The product of its (nonzero) digits is 1296540, while the sum is 48.

The spelling of 31375077672 in words is "thirty-one billion, three hundred seventy-five million, seventy-seven thousand, six hundred seventy-two".