11438888916 has 48 divisors (see below), whose sum is σ = 32850145664. Its totient is φ = 3016849536.

The previous prime is 11438888837. The next prime is 11438888921. The reversal of 11438888916 is 61988883411.

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, 5236495 + ... + 5238678.

Almost surely, 2^11438888916 is an apocalyptic number.

It is an amenable number.

11438888916 is an abundant number, since it is smaller than the sum of its proper divisors (21411256748).

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

11438888916 is a wasteful number, since it uses less digits than its factorization.

11438888916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10475200 (or 10475198 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 57.

The spelling of 11438888916 in words is "eleven billion, four hundred thirty-eight million, eight hundred eighty-eight thousand, nine hundred sixteen".