97931677902271 has 2 divisors, whose sum is σ = 97931677902272. Its totient is φ = 97931677902270.

The previous prime is 97931677902229. The next prime is 97931677902283. The reversal of 97931677902271 is 17220977613979.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97931677902271 - 2¹⁷ = 97931677771199 is a prime.

It is a super-2 number, since 2×97931677902271² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97931677902271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97931677902371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48965838951135 + 48965838951136.

It is an arithmetic number, because the mean of its divisors is an integer number (48965838951136).

Almost surely, 2^{97931677902271} is an apocalyptic number.

97931677902271 is a deficient number, since it is larger than the sum of its proper divisors (1).

97931677902271 is an equidigital number, since it uses as much as digits as its factorization.

97931677902271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126023688, while the sum is 70.

The spelling of 97931677902271 in words is "ninety-seven trillion, nine hundred thirty-one billion, six hundred seventy-seven million, nine hundred two thousand, two hundred seventy-one".