26165964131 has 2 divisors, whose sum is σ = 26165964132. Its totient is φ = 26165964130.

The previous prime is 26165964089. The next prime is 26165964203. The reversal of 26165964131 is 13146956162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26165964131 - 2¹⁴ = 26165947747 is a prime.

It is a super-2 number, since 2×26165964131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26165964431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13082982065 + 13082982066.

It is an arithmetic number, because the mean of its divisors is an integer number (13082982066).

Almost surely, 2^26165964131 is an apocalyptic number.

26165964131 is a deficient number, since it is larger than the sum of its proper divisors (1).

26165964131 is an equidigital number, since it uses as much as digits as its factorization.

26165964131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The spelling of 26165964131 in words is "twenty-six billion, one hundred sixty-five million, nine hundred sixty-four thousand, one hundred thirty-one".