26311394816 has 40 divisors (see below), whose sum is σ = 60081608400. Its totient is φ = 11276310528.

The previous prime is 26311394803. The next prime is 26311394843. The reversal of 26311394816 is 61849311362.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3667091 + ... + 3674258.

It is an arithmetic number, because the mean of its divisors is an integer number (1502040210).

Almost surely, 2^26311394816 is an apocalyptic number.

It is an amenable number.

26311394816 is an abundant number, since it is smaller than the sum of its proper divisors (33770213584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26311394816 is an frugal number, since it uses more digits than its factorization.

26311394816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7341374 (or 7341358 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The spelling of 26311394816 in words is "twenty-six billion, three hundred eleven million, three hundred ninety-four thousand, eight hundred sixteen".