18764125871420 has 96 divisors (see below), whose sum is σ = 42495806545920. Its totient is φ = 6936282063360.

The previous prime is 18764125871353. The next prime is 18764125871431. The reversal of 18764125871420 is 2417852146781.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125920997 + ... + 126069923.

It is an arithmetic number, because the mean of its divisors is an integer number (442664651520).

Almost surely, 2^{18764125871420} is an apocalyptic number.

18764125871420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18764125871420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21247903272960).

18764125871420 is an abundant number, since it is smaller than the sum of its proper divisors (23731680674500).

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

18764125871420 is a wasteful number, since it uses less digits than its factorization.

18764125871420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157083 (or 157081 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 56.

The spelling of 18764125871420 in words is "eighteen trillion, seven hundred sixty-four billion, one hundred twenty-five million, eight hundred seventy-one thousand, four hundred twenty".