18536850368536 has 32 divisors (see below), whose sum is σ = 35180560990800. Its totient is φ = 9155565619200.

The previous prime is 18536850368521. The next prime is 18536850368573. The reversal of 18536850368536 is 63586305863581.

It is a super-2 number, since 2×18536850368536² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11637465 + ... + 13134088.

Almost surely, 2^{18536850368536} is an apocalyptic number.

It is an amenable number.

18536850368536 is a deficient number, since it is larger than the sum of its proper divisors (16643710622264).

18536850368536 is a wasteful number, since it uses less digits than its factorization.

18536850368536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24772699 (or 24772695 counting only the distinct ones).

The product of its (nonzero) digits is 373248000, while the sum is 67.

The spelling of 18536850368536 in words is "eighteen trillion, five hundred thirty-six billion, eight hundred fifty million, three hundred sixty-eight thousand, five hundred thirty-six".