10887138888 has 32 divisors (see below), whose sum is σ = 27221107200. Its totient is φ = 3628611648.

The previous prime is 10887138859. The next prime is 10887138901. The reversal of 10887138888 is 88883178801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225258 + ... + 269286.

It is an arithmetic number, because the mean of its divisors is an integer number (850659600).

Almost surely, 2^10887138888 is an apocalyptic number.

It is an amenable number.

10887138888 is an abundant number, since it is smaller than the sum of its proper divisors (16333968312).

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

10887138888 is a wasteful number, since it uses less digits than its factorization.

10887138888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54341 (or 54337 counting only the distinct ones).

The product of its (nonzero) digits is 5505024, while the sum is 60.

The spelling of 10887138888 in words is "ten billion, eight hundred eighty-seven million, one hundred thirty-eight thousand, eight hundred eighty-eight".