18541316860 has 24 divisors (see below), whose sum is σ = 42476471856. Its totient is φ = 6742296960.

The previous prime is 18541316819. The next prime is 18541316861. The reversal of 18541316860 is 6861314581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18541316861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42139137 + ... + 42139576.

It is an arithmetic number, because the mean of its divisors is an integer number (1769852994).

Almost surely, 2^18541316860 is an apocalyptic number.

18541316860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18541316860 is an abundant number, since it is smaller than the sum of its proper divisors (23935154996).

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

18541316860 is a wasteful number, since it uses less digits than its factorization.

18541316860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84278733 (or 84278731 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 18541316860 in words is "eighteen billion, five hundred forty-one million, three hundred sixteen thousand, eight hundred sixty".