26160031957 has 2 divisors, whose sum is σ = 26160031958. Its totient is φ = 26160031956.

The previous prime is 26160031897. The next prime is 26160031973. The reversal of 26160031957 is 75913006162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17761959076 + 8398072881 = 133274^2 + 91641^2 .

It is a cyclic number.

It is not a de Polignac number, because 26160031957 - 2¹⁵ = 26159999189 is a prime.

It is a super-2 number, since 2×26160031957² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26160031757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13080015978 + 13080015979.

It is an arithmetic number, because the mean of its divisors is an integer number (13080015979).

Almost surely, 2^26160031957 is an apocalyptic number.

It is an amenable number.

26160031957 is a deficient number, since it is larger than the sum of its proper divisors (1).

26160031957 is an equidigital number, since it uses as much as digits as its factorization.

26160031957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 40.

The spelling of 26160031957 in words is "twenty-six billion, one hundred sixty million, thirty-one thousand, nine hundred fifty-seven".