26534311457 has 2 divisors, whose sum is σ = 26534311458. Its totient is φ = 26534311456.

The previous prime is 26534311411. The next prime is 26534311469. The reversal of 26534311457 is 75411343562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24270835681 + 2263475776 = 155791^2 + 47576^2 .

It is a cyclic number.

It is not a de Polignac number, because 26534311457 - 2⁸ = 26534311201 is a prime.

It is not a weakly prime, because it can be changed into another prime (26534311057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13267155728 + 13267155729.

It is an arithmetic number, because the mean of its divisors is an integer number (13267155729).

Almost surely, 2^26534311457 is an apocalyptic number.

It is an amenable number.

26534311457 is a deficient number, since it is larger than the sum of its proper divisors (1).

26534311457 is an equidigital number, since it uses as much as digits as its factorization.

26534311457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 41.

The spelling of 26534311457 in words is "twenty-six billion, five hundred thirty-four million, three hundred eleven thousand, four hundred fifty-seven".