11827665236 has 12 divisors (see below), whose sum is σ = 21257831028. Its totient is φ = 5753999232.

The previous prime is 11827665229. The next prime is 11827665247. The reversal of 11827665236 is 63256672811.

It can be written as a sum of positive squares in 2 ways, for example, as 6433644100 + 5394021136 = 80210^2 + 73444^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39958181 + ... + 39958476.

It is an arithmetic number, because the mean of its divisors is an integer number (1771485919).

Almost surely, 2^11827665236 is an apocalyptic number.

It is an amenable number.

11827665236 is a deficient number, since it is larger than the sum of its proper divisors (9430165792).

11827665236 is a wasteful number, since it uses less digits than its factorization.

11827665236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79916698 (or 79916696 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The spelling of 11827665236 in words is "eleven billion, eight hundred twenty-seven million, six hundred sixty-five thousand, two hundred thirty-six".