265805792957 has 2 divisors, whose sum is σ = 265805792958. Its totient is φ = 265805792956.

The previous prime is 265805792953. The next prime is 265805793041. The reversal of 265805792957 is 759297508562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156020260036 + 109785532921 = 394994^2 + 331339^2 .

It is a cyclic number.

It is not a de Polignac number, because 265805792957 - 2² = 265805792953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 265805792893 and 265805792902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265805792953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132902896478 + 132902896479.

It is an arithmetic number, because the mean of its divisors is an integer number (132902896479).

Almost surely, 2^265805792957 is an apocalyptic number.

It is an amenable number.

265805792957 is a deficient number, since it is larger than the sum of its proper divisors (1).

265805792957 is an equidigital number, since it uses as much as digits as its factorization.

265805792957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256000, while the sum is 65.

The spelling of 265805792957 in words is "two hundred sixty-five billion, eight hundred five million, seven hundred ninety-two thousand, nine hundred fifty-seven".