26431086364 has 48 divisors (see below), whose sum is σ = 48594954240. Its totient is φ = 12554974080.

The previous prime is 26431086349. The next prime is 26431086377. The reversal of 26431086364 is 46368013462.

It is a self number, because there is not a number n which added to its sum of digits gives 26431086364.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8949112 + ... + 8952064.

It is an arithmetic number, because the mean of its divisors is an integer number (1012394880).

Almost surely, 2^26431086364 is an apocalyptic number.

It is an amenable number.

26431086364 is a deficient number, since it is larger than the sum of its proper divisors (22163867876).

26431086364 is a wasteful number, since it uses less digits than its factorization.

26431086364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610 (or 3608 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 26431086364 in words is "twenty-six billion, four hundred thirty-one million, eighty-six thousand, three hundred sixty-four".