26550345631 has 2 divisors, whose sum is σ = 26550345632. Its totient is φ = 26550345630.

The previous prime is 26550345589. The next prime is 26550345691. The reversal of 26550345631 is 13654305562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26550345631 - 2¹⁵ = 26550312863 is a prime.

It is a super-2 number, since 2×26550345631² (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 (26550345691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13275172815 + 13275172816.

It is an arithmetic number, because the mean of its divisors is an integer number (13275172816).

Almost surely, 2^26550345631 is an apocalyptic number.

26550345631 is a deficient number, since it is larger than the sum of its proper divisors (1).

26550345631 is an equidigital number, since it uses as much as digits as its factorization.

26550345631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 26550345631 in words is "twenty-six billion, five hundred fifty million, three hundred forty-five thousand, six hundred thirty-one".