26880000018 has 48 divisors (see below), whose sum is σ = 55830307584. Its totient is φ = 8625342240.

The previous prime is 26879999989. The next prime is 26880000047. The reversal of 26880000018 is 81000008862.

It is an interprime number because it is at equal distance from previous prime (26879999989) and next prime (26880000047).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 791871 + ... + 825117.

It is an arithmetic number, because the mean of its divisors is an integer number (1163131408).

Almost surely, 2^26880000018 is an apocalyptic number.

26880000018 is an abundant number, since it is smaller than the sum of its proper divisors (28950307566).

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

26880000018 is a wasteful number, since it uses less digits than its factorization.

26880000018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33407 (or 33360 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The spelling of 26880000018 in words is "twenty-six billion, eight hundred eighty million, eighteen", and thus it is an aban number.