18718847010 has 64 divisors (see below), whose sum is σ = 50135068800. Its totient is φ = 4969878336.

The previous prime is 18718847009. The next prime is 18718847023. The reversal of 18718847010 is 1074881781.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89544 + ... + 213203.

It is an arithmetic number, because the mean of its divisors is an integer number (783360450).

Almost surely, 2^18718847010 is an apocalyptic number.

18718847010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18718847010 is an abundant number, since it is smaller than the sum of its proper divisors (31416221790).

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

18718847010 is a wasteful number, since it uses less digits than its factorization.

18718847010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302992 (or 302986 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 45.

The spelling of 18718847010 in words is "eighteen billion, seven hundred eighteen million, eight hundred forty-seven thousand, ten".