31049784292 has 12 divisors (see below), whose sum is σ = 55662418476. Its totient is φ = 15146236160.

The previous prime is 31049784263. The next prime is 31049784319. The reversal of 31049784292 is 29248794013.

It can be written as a sum of positive squares in 2 ways, for example, as 15278443236 + 15771341056 = 123606^2 + 125584^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94663813 + ... + 94664140.

It is an arithmetic number, because the mean of its divisors is an integer number (4638534873).

Almost surely, 2^31049784292 is an apocalyptic number.

It is an amenable number.

31049784292 is a deficient number, since it is larger than the sum of its proper divisors (24612634184).

31049784292 is a wasteful number, since it uses less digits than its factorization.

31049784292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189327998 (or 189327996 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 31049784292 in words is "thirty-one billion, forty-nine million, seven hundred eighty-four thousand, two hundred ninety-two".