97641586658131 has 2 divisors, whose sum is σ = 97641586658132. Its totient is φ = 97641586658130.

The previous prime is 97641586658129. The next prime is 97641586658171. The reversal of 97641586658131 is 13185668514679.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97641586658131 - 2¹ = 97641586658129 is a prime.

It is a super-2 number, since 2×97641586658131² (a number of 29 digits) contains 22 as substring.

Together with 97641586658129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (97641586658111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48820793329065 + 48820793329066.

It is an arithmetic number, because the mean of its divisors is an integer number (48820793329066).

Almost surely, 2^{97641586658131} is an apocalyptic number.

97641586658131 is a deficient number, since it is larger than the sum of its proper divisors (1).

97641586658131 is an equidigital number, since it uses as much as digits as its factorization.

97641586658131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 261273600, while the sum is 70.

The spelling of 97641586658131 in words is "ninety-seven trillion, six hundred forty-one billion, five hundred eighty-six million, six hundred fifty-eight thousand, one hundred thirty-one".