18424125420 has 48 divisors (see below), whose sum is σ = 51620405760. Its totient is φ = 4909971136.

The previous prime is 18424125403. The next prime is 18424125427. The reversal of 18424125420 is 2452142481.

It is not an unprimeable number, because it can be changed into a prime (18424125427) 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, 2010 + ... + 191969.

It is an arithmetic number, because the mean of its divisors is an integer number (1075425120).

Almost surely, 2^18424125420 is an apocalyptic number.

18424125420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18424125420 is an abundant number, since it is smaller than the sum of its proper divisors (33196280340).

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

18424125420 is a wasteful number, since it uses less digits than its factorization.

18424125420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195574 (or 195572 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The spelling of 18424125420 in words is "eighteen billion, four hundred twenty-four million, one hundred twenty-five thousand, four hundred twenty".