26644620404 has 96 divisors (see below), whose sum is σ = 51938611200. Its totient is φ = 11904122880.

The previous prime is 26644620391. The next prime is 26644620407. The reversal of 26644620404 is 40402644662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26644620407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32140262 + ... + 32141090.

It is an arithmetic number, because the mean of its divisors is an integer number (541027200).

Almost surely, 2^26644620404 is an apocalyptic number.

It is an amenable number.

26644620404 is a deficient number, since it is larger than the sum of its proper divisors (25293990796).

26644620404 is a wasteful number, since it uses less digits than its factorization.

26644620404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153 (or 1151 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 26644620404 in words is "twenty-six billion, six hundred forty-four million, six hundred twenty thousand, four hundred four".