31700000689 has 16 divisors (see below), whose sum is σ = 36326753280. Its totient is φ = 27097897680.

The previous prime is 31700000611. The next prime is 31700000737. The reversal of 31700000689 is 98600000713.

It is not a de Polignac number, because 31700000689 - 2⁷ = 31700000561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31700000489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4497402 + ... + 4504444.

It is an arithmetic number, because the mean of its divisors is an integer number (2270422080).

Almost surely, 2^31700000689 is an apocalyptic number.

It is an amenable number.

31700000689 is a deficient number, since it is larger than the sum of its proper divisors (4626752591).

31700000689 is a wasteful number, since it uses less digits than its factorization.

31700000689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8700.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 31700000689 in words is "thirty-one billion, seven hundred million, six hundred eighty-nine", and thus it is an aban number.