26570096257 has 2 divisors, whose sum is σ = 26570096258. Its totient is φ = 26570096256.

The previous prime is 26570096251. The next prime is 26570096303. The reversal of 26570096257 is 75269007562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19959755841 + 6610340416 = 141279^2 + 81304^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26570096257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26570096257.

It is not a weakly prime, because it can be changed into another prime (26570096251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13285048128 + 13285048129.

It is an arithmetic number, because the mean of its divisors is an integer number (13285048129).

Almost surely, 2^26570096257 is an apocalyptic number.

It is an amenable number.

26570096257 is a deficient number, since it is larger than the sum of its proper divisors (1).

26570096257 is an equidigital number, since it uses as much as digits as its factorization.

26570096257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 26570096257 in words is "twenty-six billion, five hundred seventy million, ninety-six thousand, two hundred fifty-seven".