18375464020 has 48 divisors (see below), whose sum is σ = 38895691968. Its totient is φ = 7291904000.

The previous prime is 18375464017. The next prime is 18375464021. The reversal of 18375464020 is 2046457381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18375464021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1283019 + ... + 1297261.

It is an arithmetic number, because the mean of its divisors is an integer number (810326916).

Almost surely, 2^18375464020 is an apocalyptic number.

18375464020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18375464020 is an abundant number, since it is smaller than the sum of its proper divisors (20520227948).

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

18375464020 is a wasteful number, since it uses less digits than its factorization.

18375464020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14760 (or 14758 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 18375464020 in words is "eighteen billion, three hundred seventy-five million, four hundred sixty-four thousand, twenty".