26040064664 has 16 divisors (see below), whose sum is σ = 48936346800. Its totient is φ = 12990372192.

The previous prime is 26040064651. The next prime is 26040064681. The reversal of 26040064664 is 46646004062.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3703787 + ... + 3710810.

It is an arithmetic number, because the mean of its divisors is an integer number (3058521675).

Almost surely, 2^26040064664 is an apocalyptic number.

It is an amenable number.

26040064664 is a deficient number, since it is larger than the sum of its proper divisors (22896282136).

26040064664 is a wasteful number, since it uses less digits than its factorization.

26040064664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7415042 (or 7415038 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 26040064664 in words is "twenty-six billion, forty million, sixty-four thousand, six hundred sixty-four".