26677516818 has 32 divisors (see below), whose sum is σ = 54277413120. Its totient is φ = 8738876240.

The previous prime is 26677516793. The next prime is 26677516837. The reversal of 26677516818 is 81861577662.

It is a happy 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, 1225021 + ... + 1246607.

It is an arithmetic number, because the mean of its divisors is an integer number (1696169160).

Almost surely, 2^26677516818 is an apocalyptic number.

26677516818 is an abundant number, since it is smaller than the sum of its proper divisors (27599896302).

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

26677516818 is a wasteful number, since it uses less digits than its factorization.

26677516818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25142.

The product of its digits is 6773760, while the sum is 57.

The spelling of 26677516818 in words is "twenty-six billion, six hundred seventy-seven million, five hundred sixteen thousand, eight hundred eighteen".