108641831497 has 2 divisors, whose sum is σ = 108641831498. Its totient is φ = 108641831496.

The previous prime is 108641831471. The next prime is 108641831509. The reversal of 108641831497 is 794138146801.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101508508816 + 7133322681 = 318604^2 + 84459^2 .

It is a cyclic number.

It is not a de Polignac number, because 108641831497 - 2²⁷ = 108507613769 is a prime.

It is a super-2 number, since 2×108641831497² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (108641837497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54320915748 + 54320915749.

It is an arithmetic number, because the mean of its divisors is an integer number (54320915749).

Almost surely, 2^108641831497 is an apocalyptic number.

It is an amenable number.

108641831497 is a deficient number, since it is larger than the sum of its proper divisors (1).

108641831497 is an equidigital number, since it uses as much as digits as its factorization.

108641831497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 108641831497 in words is "one hundred eight billion, six hundred forty-one million, eight hundred thirty-one thousand, four hundred ninety-seven".