26644064264 has 32 divisors (see below), whose sum is σ = 51699244800. Its totient is φ = 12859767360.

The previous prime is 26644064263. The next prime is 26644064297. The reversal of 26644064264 is 46246044662.

It is not an unprimeable number, because it can be changed into a prime (26644064261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36854 + ... + 233765.

It is an arithmetic number, because the mean of its divisors is an integer number (1615601400).

Almost surely, 2^26644064264 is an apocalyptic number.

It is an amenable number.

26644064264 is a deficient number, since it is larger than the sum of its proper divisors (25055180536).

26644064264 is a wasteful number, since it uses less digits than its factorization.

26644064264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271053 (or 271049 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 44.

The spelling of 26644064264 in words is "twenty-six billion, six hundred forty-four million, sixty-four thousand, two hundred sixty-four".