31764074042 has 16 divisors (see below), whose sum is σ = 49332839400. Its totient is φ = 15320766720.

The previous prime is 31764074039. The next prime is 31764074059. The reversal of 31764074042 is 24047046713.

It can be written as a sum of positive squares in 4 ways, for example, as 18012055681 + 13752018361 = 134209^2 + 117269^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31764073987 and 31764074005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177059 + ... + 308022.

Almost surely, 2^31764074042 is an apocalyptic number.

31764074042 is a deficient number, since it is larger than the sum of its proper divisors (17568765358).

31764074042 is a wasteful number, since it uses less digits than its factorization.

31764074042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486241.

The product of its (nonzero) digits is 112896, while the sum is 38.

The spelling of 31764074042 in words is "thirty-one billion, seven hundred sixty-four million, seventy-four thousand, forty-two".