18200180862 has 12 divisors (see below), whose sum is σ = 39433725240. Its totient is φ = 6066726948.

The previous prime is 18200180861. The next prime is 18200180917. The reversal of 18200180862 is 26808100281.

It is a super-2 number, since 2×18200180862² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18200180861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 505560562 + ... + 505560597.

It is an arithmetic number, because the mean of its divisors is an integer number (3286143770).

Almost surely, 2^18200180862 is an apocalyptic number.

18200180862 is an abundant number, since it is smaller than the sum of its proper divisors (21233544378).

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

18200180862 is a wasteful number, since it uses less digits than its factorization.

18200180862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011121167 (or 1011121164 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The spelling of 18200180862 in words is "eighteen billion, two hundred million, one hundred eighty thousand, eight hundred sixty-two".