26281777968 has 80 divisors (see below), whose sum is σ = 79408905600. Its totient is φ = 8299506240.

The previous prime is 26281777927. The next prime is 26281778009. The reversal of 26281777968 is 86977718262.

It is an interprime number because it is at equal distance from previous prime (26281777927) and next prime (26281778009).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1592778 + ... + 1609193.

It is an arithmetic number, because the mean of its divisors is an integer number (992611320).

Almost surely, 2^26281777968 is an apocalyptic number.

It is an amenable number.

26281777968 is an abundant number, since it is smaller than the sum of its proper divisors (53127127632).

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

26281777968 is a wasteful number, since it uses less digits than its factorization.

26281777968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202007 (or 3201995 counting only the distinct ones).

The product of its digits is 28449792, while the sum is 63.

The spelling of 26281777968 in words is "twenty-six billion, two hundred eighty-one million, seven hundred seventy-seven thousand, nine hundred sixty-eight".