31792402989 has 8 divisors (see below), whose sum is σ = 47099856320. Its totient is φ = 21194935308.

The previous prime is 31792402951. The next prime is 31792402991. The reversal of 31792402989 is 98920429713.

31792402989 is a `hidden beast` number, since 317 + 9 + 240 + 2 + 9 + 89 = 666.

It is not a de Polignac number, because 31792402989 - 2¹³ = 31792394797 is a prime.

It is a super-2 number, since 2×31792402989² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31792400989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588748177 + ... + 588748230.

It is an arithmetic number, because the mean of its divisors is an integer number (5887482040).

Almost surely, 2^31792402989 is an apocalyptic number.

It is an amenable number.

31792402989 is a deficient number, since it is larger than the sum of its proper divisors (15307453331).

31792402989 is a wasteful number, since it uses less digits than its factorization.

31792402989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177496416 (or 1177496410 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 31792402989 in words is "thirty-one billion, seven hundred ninety-two million, four hundred two thousand, nine hundred eighty-nine".