26664272688 has 80 divisors (see below), whose sum is σ = 69273939200. Its totient is φ = 8837717760.

The previous prime is 26664272671. The next prime is 26664272689. The reversal of 26664272688 is 88627246662.

It is not an unprimeable number, because it can be changed into a prime (26664272689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14189733 + ... + 14191611.

It is an arithmetic number, because the mean of its divisors is an integer number (865924240).

Almost surely, 2^26664272688 is an apocalyptic number.

It is an amenable number.

26664272688 is an abundant number, since it is smaller than the sum of its proper divisors (42609666512).

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

26664272688 is a wasteful number, since it uses less digits than its factorization.

26664272688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410 (or 3404 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 57.

The spelling of 26664272688 in words is "twenty-six billion, six hundred sixty-four million, two hundred seventy-two thousand, six hundred eighty-eight".