18418883077236 has 24 divisors (see below), whose sum is σ = 43144621067520. Its totient is φ = 6115738089472.

The previous prime is 18418883077201. The next prime is 18418883077247. The reversal of 18418883077236 is 63277038881481.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

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, 2986197156 + ... + 2986203323.

It is an arithmetic number, because the mean of its divisors is an integer number (1797692544480).

Almost surely, 2^{18418883077236} is an apocalyptic number.

It is an amenable number.

18418883077236 is an abundant number, since it is smaller than the sum of its proper divisors (24725737990284).

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

18418883077236 is a wasteful number, since it uses less digits than its factorization.

18418883077236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5972400743 (or 5972400741 counting only the distinct ones).

The product of its (nonzero) digits is 86704128, while the sum is 66.

The spelling of 18418883077236 in words is "eighteen trillion, four hundred eighteen billion, eight hundred eighty-three million, seventy-seven thousand, two hundred thirty-six".