11818756265864 has 16 divisors (see below), whose sum is σ = 22282599868620. Its totient is φ = 5876729634240.

The previous prime is 11818756265783. The next prime is 11818756265881. The reversal of 11818756265864 is 46856265781811.

It can be written as a sum of positive squares in 2 ways, for example, as 8322013344100 + 3496742921764 = 2884790^2 + 1869958^2 .

It is a super-2 number, since 2×11818756265864² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11818756265794 and 11818756265803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4081060799 + ... + 4081063694.

Almost surely, 2^{11818756265864} is an apocalyptic number.

It is an amenable number.

11818756265864 is a deficient number, since it is larger than the sum of its proper divisors (10463843602756).

11818756265864 is a wasteful number, since it uses less digits than its factorization.

11818756265864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8162124680 (or 8162124676 counting only the distinct ones).

The product of its digits is 154828800, while the sum is 68.

The spelling of 11818756265864 in words is "eleven trillion, eight hundred eighteen billion, seven hundred fifty-six million, two hundred sixty-five thousand, eight hundred sixty-four".