26616794880 has 144 divisors (see below), whose sum is σ = 91546590240. Its totient is φ = 6551814144.

The previous prime is 26616794861. The next prime is 26616794891. The reversal of 26616794880 is 8849761662.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 26616794880.

It is a congruent number.

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, 216675 + ... + 316514.

It is an arithmetic number, because the mean of its divisors is an integer number (635740210).

Almost surely, 2^26616794880 is an apocalyptic number.

26616794880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26616794880 is an abundant number, since it is smaller than the sum of its proper divisors (64929795360).

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

26616794880 is a wasteful number, since it uses less digits than its factorization.

26616794880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533226 (or 533212 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 26616794880 in words is "twenty-six billion, six hundred sixteen million, seven hundred ninety-four thousand, eight hundred eighty".