26320346688 has 56 divisors (see below), whose sum is σ = 69678214720. Its totient is φ = 8768540160.

The previous prime is 26320346681. The next prime is 26320346693. The reversal of 26320346688 is 88664302362.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (26320346681) 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, 314118 + ... + 388986.

Almost surely, 2^26320346688 is an apocalyptic number.

It is an amenable number.

26320346688 is an abundant number, since it is smaller than the sum of its proper divisors (43357868032).

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

26320346688 is a wasteful number, since it uses less digits than its factorization.

26320346688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76715 (or 76705 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 26320346688 in words is "twenty-six billion, three hundred twenty million, three hundred forty-six thousand, six hundred eighty-eight".