31568959242 has 24 divisors (see below), whose sum is σ = 69520715940. Its totient is φ = 10350478080.

The previous prime is 31568959199. The next prime is 31568959283. The reversal of 31568959242 is 24295986513.

31568959242 is a `hidden beast` number, since 3 + 1 + 5 + 6 + 8 + 9 + 592 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 30345988401 + 1222970841 = 174201^2 + 34971^2 .

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, 14374567 + ... + 14376762.

Almost surely, 2^31568959242 is an apocalyptic number.

31568959242 is an abundant number, since it is smaller than the sum of its proper divisors (37951756698).

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

31568959242 is a wasteful number, since it uses less digits than its factorization.

31568959242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28751398 (or 28751395 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The spelling of 31568959242 in words is "thirty-one billion, five hundred sixty-eight million, nine hundred fifty-nine thousand, two hundred forty-two".