11838662885 has 24 divisors (see below), whose sum is σ = 16530818976. Its totient is φ = 8115478560.

The previous prime is 11838662813. The next prime is 11838662893. The reversal of 11838662885 is 58826683811.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-11838662885 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11838662885.

It is a congruent number.

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, 1222874 + ... + 1232516.

It is an arithmetic number, because the mean of its divisors is an integer number (688784124).

Almost surely, 2^11838662885 is an apocalyptic number.

It is an amenable number.

11838662885 is a deficient number, since it is larger than the sum of its proper divisors (4692156091).

11838662885 is an equidigital number, since it uses as much as digits as its factorization.

11838662885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14673 (or 14666 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 56.

The spelling of 11838662885 in words is "eleven billion, eight hundred thirty-eight million, six hundred sixty-two thousand, eight hundred eighty-five".