31407522442 has 24 divisors (see below), whose sum is σ = 49291272324. Its totient is φ = 15007992384.

The previous prime is 31407522431. The next prime is 31407522467. The reversal of 31407522442 is 24422570413.

It can be written as a sum of positive squares in 2 ways, for example, as 30820962481 + 586559961 = 175559^2 + 24219^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 31407522398 and 31407522407.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1271118 + ... + 1295590.

Almost surely, 2^31407522442 is an apocalyptic number.

31407522442 is a deficient number, since it is larger than the sum of its proper divisors (17883749882).

31407522442 is a wasteful number, since it uses less digits than its factorization.

31407522442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25734 (or 25711 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 34.

The spelling of 31407522442 in words is "thirty-one billion, four hundred seven million, five hundred twenty-two thousand, four hundred forty-two".