97317376631 has 2 divisors, whose sum is σ = 97317376632. Its totient is φ = 97317376630.

The previous prime is 97317376577. The next prime is 97317376703. The reversal of 97317376631 is 13667371379.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97317376631 - 2³⁴ = 80137507447 is a prime.

It is a super-2 number, since 2×97317376631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97317336631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48658688315 + 48658688316.

It is an arithmetic number, because the mean of its divisors is an integer number (48658688316).

Almost surely, 2^97317376631 is an apocalyptic number.

97317376631 is a deficient number, since it is larger than the sum of its proper divisors (1).

97317376631 is an equidigital number, since it uses as much as digits as its factorization.

97317376631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3000564, while the sum is 53.

The spelling of 97317376631 in words is "ninety-seven billion, three hundred seventeen million, three hundred seventy-six thousand, six hundred thirty-one".