26608465431 has 12 divisors (see below), whose sum is σ = 40457316120. Its totient is φ = 16805346480.

The previous prime is 26608465427. The next prime is 26608465441. The reversal of 26608465431 is 13456480662.

26608465431 is a `hidden beast` number, since 2 + 6 + 60 + 8 + 46 + 543 + 1 = 666.

It is not a de Polignac number, because 26608465431 - 2² = 26608465427 is a prime.

It is a super-2 number, since 2×26608465431² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26608465441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77802360 + ... + 77802701.

It is an arithmetic number, because the mean of its divisors is an integer number (3371443010).

Almost surely, 2^26608465431 is an apocalyptic number.

26608465431 is a deficient number, since it is larger than the sum of its proper divisors (13848850689).

26608465431 is a wasteful number, since it uses less digits than its factorization.

26608465431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155605086 (or 155605083 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 26608465431 in words is "twenty-six billion, six hundred eight million, four hundred sixty-five thousand, four hundred thirty-one".