18572025724 has 48 divisors (see below), whose sum is σ = 38381285376. Its totient is φ = 7694841600.

The previous prime is 18572025697. The next prime is 18572025733. The reversal of 18572025724 is 42752027581.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 884532 + ... + 905284.

It is an arithmetic number, because the mean of its divisors is an integer number (799610112).

Almost surely, 2^18572025724 is an apocalyptic number.

18572025724 is a gapful number since it is divisible by the number (14) 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 18572025724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19190642688).

18572025724 is an abundant number, since it is smaller than the sum of its proper divisors (19809259652).

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

18572025724 is a wasteful number, since it uses less digits than its factorization.

18572025724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21826 (or 21824 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 43.

The spelling of 18572025724 in words is "eighteen billion, five hundred seventy-two million, twenty-five thousand, seven hundred twenty-four".