26457664374 has 12 divisors (see below), whose sum is σ = 57324939516. Its totient is φ = 8819221452.

The previous prime is 26457664357. The next prime is 26457664381. The reversal of 26457664374 is 47346675462.

26457664374 is a `hidden beast` number, since 2 + 6 + 4 + 576 + 64 + 3 + 7 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 26457664374.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 734935104 + ... + 734935139.

It is an arithmetic number, because the mean of its divisors is an integer number (4777078293).

Almost surely, 2^26457664374 is an apocalyptic number.

26457664374 is an abundant number, since it is smaller than the sum of its proper divisors (30867275142).

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

26457664374 is a wasteful number, since it uses less digits than its factorization.

26457664374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469870251 (or 1469870248 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 54.

The spelling of 26457664374 in words is "twenty-six billion, four hundred fifty-seven million, six hundred sixty-four thousand, three hundred seventy-four".