26722506265831 has 2 divisors, whose sum is σ = 26722506265832. Its totient is φ = 26722506265830.

The previous prime is 26722506265823. The next prime is 26722506265853. The reversal of 26722506265831 is 13856260522762.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26722506265831 - 2³ = 26722506265823 is a prime.

It is a super-2 number, since 2×26722506265831² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26722506265031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13361253132915 + 13361253132916.

It is an arithmetic number, because the mean of its divisors is an integer number (13361253132916).

Almost surely, 2^{26722506265831} is an apocalyptic number.

26722506265831 is a deficient number, since it is larger than the sum of its proper divisors (1).

26722506265831 is an equidigital number, since it uses as much as digits as its factorization.

26722506265831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14515200, while the sum is 55.

The spelling of 26722506265831 in words is "twenty-six trillion, seven hundred twenty-two billion, five hundred six million, two hundred sixty-five thousand, eight hundred thirty-one".