26697568604 has 24 divisors (see below), whose sum is σ = 56536028640. Its totient is φ = 10768766976.

The previous prime is 26697568589. The next prime is 26697568643. The reversal of 26697568604 is 40686579662.

It is a happy number.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28043189 + ... + 28044140.

It is an arithmetic number, because the mean of its divisors is an integer number (2355667860).

Almost surely, 2^26697568604 is an apocalyptic number.

It is an amenable number.

26697568604 is an abundant number, since it is smaller than the sum of its proper divisors (29838460036).

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

26697568604 is a wasteful number, since it uses less digits than its factorization.

26697568604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56087357 (or 56087355 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 26697568604 in words is "twenty-six billion, six hundred ninety-seven million, five hundred sixty-eight thousand, six hundred four".