31607564701 has 2 divisors, whose sum is σ = 31607564702. Its totient is φ = 31607564700.

The previous prime is 31607564693. The next prime is 31607564731. The reversal of 31607564701 is 10746570613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31398068025 + 209496676 = 177195^2 + 14474^2 .

It is a cyclic number.

It is not a de Polignac number, because 31607564701 - 2³ = 31607564693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31607564731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15803782350 + 15803782351.

It is an arithmetic number, because the mean of its divisors is an integer number (15803782351).

Almost surely, 2^31607564701 is an apocalyptic number.

It is an amenable number.

31607564701 is a deficient number, since it is larger than the sum of its proper divisors (1).

31607564701 is an equidigital number, since it uses as much as digits as its factorization.

31607564701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 31607564701 in words is "thirty-one billion, six hundred seven million, five hundred sixty-four thousand, seven hundred one".