26264904431 has 2 divisors, whose sum is σ = 26264904432. Its totient is φ = 26264904430.

The previous prime is 26264904377. The next prime is 26264904437. The reversal of 26264904431 is 13440946262.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26264904431 - 2¹⁴ = 26264888047 is a prime.

It is a super-2 number, since 2×26264904431² (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 (26264904437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13132452215 + 13132452216.

It is an arithmetic number, because the mean of its divisors is an integer number (13132452216).

Almost surely, 2^26264904431 is an apocalyptic number.

26264904431 is a deficient number, since it is larger than the sum of its proper divisors (1).

26264904431 is an equidigital number, since it uses as much as digits as its factorization.

26264904431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 26264904431 in words is "twenty-six billion, two hundred sixty-four million, nine hundred four thousand, four hundred thirty-one".