26884394985 has 16 divisors (see below), whose sum is σ = 49160036736. Its totient is φ = 12290009088.

The previous prime is 26884394939. The next prime is 26884394993. The reversal of 26884394985 is 58949348862.

It is not a de Polignac number, because 26884394985 - 2⁶ = 26884394921 is a prime.

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, 128020824 + ... + 128021033.

It is an arithmetic number, because the mean of its divisors is an integer number (3072502296).

Almost surely, 2^26884394985 is an apocalyptic number.

It is an amenable number.

26884394985 is a deficient number, since it is larger than the sum of its proper divisors (22275641751).

26884394985 is a wasteful number, since it uses less digits than its factorization.

26884394985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256041872.

The product of its digits is 119439360, while the sum is 66.

The spelling of 26884394985 in words is "twenty-six billion, eight hundred eighty-four million, three hundred ninety-four thousand, nine hundred eighty-five".