11818602536 has 16 divisors (see below), whose sum is σ = 23864486100. Its totient is φ = 5454739584.

The previous prime is 11818602529. The next prime is 11818602557. The reversal of 11818602536 is 63520681811.

It can be written as a sum of positive squares in 2 ways, for example, as 11512002436 + 306600100 = 107294^2 + 17510^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11818602493 and 11818602502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56820101 + ... + 56820308.

Almost surely, 2^11818602536 is an apocalyptic number.

It is an amenable number.

11818602536 is an abundant number, since it is smaller than the sum of its proper divisors (12045883564).

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

11818602536 is a wasteful number, since it uses less digits than its factorization.

11818602536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113640428 (or 113640424 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 11818602536 in words is "eleven billion, eight hundred eighteen million, six hundred two thousand, five hundred thirty-six".