26806384831 has 2 divisors, whose sum is σ = 26806384832. Its totient is φ = 26806384830.

The previous prime is 26806384817. The next prime is 26806384879. The reversal of 26806384831 is 13848360862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26806384831 - 2⁵ = 26806384799 is a prime.

It is a super-2 number, since 2×26806384831² (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 (26806385831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13403192415 + 13403192416.

It is an arithmetic number, because the mean of its divisors is an integer number (13403192416).

Almost surely, 2^26806384831 is an apocalyptic number.

26806384831 is a deficient number, since it is larger than the sum of its proper divisors (1).

26806384831 is an equidigital number, since it uses as much as digits as its factorization.

26806384831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1327104, while the sum is 49.

The spelling of 26806384831 in words is "twenty-six billion, eight hundred six million, three hundred eighty-four thousand, eight hundred thirty-one".