26564400836 has 24 divisors (see below), whose sum is σ = 48010744320. Its totient is φ = 12847464000.

The previous prime is 26564400833. The next prime is 26564400853. The reversal of 26564400836 is 63800446562.

It is not an unprimeable number, because it can be changed into a prime (26564400833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207761 + ... + 310311.

It is an arithmetic number, because the mean of its divisors is an integer number (2000447680).

Almost surely, 2^26564400836 is an apocalyptic number.

It is an amenable number.

26564400836 is a deficient number, since it is larger than the sum of its proper divisors (21446343484).

26564400836 is a wasteful number, since it uses less digits than its factorization.

26564400836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104675 (or 104673 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 26564400836 in words is "twenty-six billion, five hundred sixty-four million, four hundred thousand, eight hundred thirty-six".