18030250639872 has 960 divisors, whose sum is σ = 60252840071424. Its totient is φ = 5353431367680.

The previous prime is 18030250639871. The next prime is 18030250639883. The reversal of 18030250639872 is 27893605203081.

18030250639872 is a `hidden beast` number, since 1 + 8 + 0 + 30 + 2 + 506 + 39 + 8 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (18030250639871) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4718723722 + ... + 4718727542.

Almost surely, 2^{18030250639872} is an apocalyptic number.

18030250639872 is a gapful number since it is divisible by the number (12) 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 18030250639872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30126420035712).

18030250639872 is an abundant number, since it is smaller than the sum of its proper divisors (42222589431552).

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

18030250639872 is an equidigital number, since it uses as much as digits as its factorization.

18030250639872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3991 (or 3963 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 18030250639872 in words is "eighteen trillion, thirty billion, two hundred fifty million, six hundred thirty-nine thousand, eight hundred seventy-two".