11138678236 has 36 divisors (see below), whose sum is σ = 22681183728. Its totient is φ = 4772452608.

The previous prime is 11138678207. The next prime is 11138678249. The reversal of 11138678236 is 63287683111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1445185 + ... + 1452871.

Almost surely, 2^11138678236 is an apocalyptic number.

It is an amenable number.

11138678236 is an abundant number, since it is smaller than the sum of its proper divisors (11542505492).

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

11138678236 is a wasteful number, since it uses less digits than its factorization.

11138678236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15098 (or 15089 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The spelling of 11138678236 in words is "eleven billion, one hundred thirty-eight million, six hundred seventy-eight thousand, two hundred thirty-six".