11814385636 has 9 divisors (see below), whose sum is σ = 20675555299. Its totient is φ = 5907084124.

The previous prime is 11814385613. The next prime is 11814385657. The reversal of 11814385636 is 63658341811.

It is a happy number.

The square root of 11814385636 is 108694.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×11814385636² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 190215 + ... + 244561.

Almost surely, 2^11814385636 is an apocalyptic number.

11814385636 is the 108694-th square number.

It is an amenable number.

11814385636 is a deficient number, since it is larger than the sum of its proper divisors (8861169663).

11814385636 is an frugal number, since it uses more digits than its factorization.

11814385636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108698 (or 54349 counting only the distinct ones).

The product of its digits is 414720, while the sum is 46.

The spelling of 11814385636 in words is "eleven billion, eight hundred fourteen million, three hundred eighty-five thousand, six hundred thirty-six".