18740728488030 has 32 divisors (see below), whose sum is σ = 44981325467424. Its totient is φ = 4997130141696.

The previous prime is 18740728488023. The next prime is 18740728488043. The reversal of 18740728488030 is 3088482704781.

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, 24457347 + ... + 25211966.

It is an arithmetic number, because the mean of its divisors is an integer number (1405666420857).

Almost surely, 2^{18740728488030} is an apocalyptic number.

18740728488030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18740728488030 is an abundant number, since it is smaller than the sum of its proper divisors (26240596979394).

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

18740728488030 is a wasteful number, since it uses less digits than its factorization.

18740728488030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49681900.

The product of its (nonzero) digits is 19267584, while the sum is 60.

The spelling of 18740728488030 in words is "eighteen trillion, seven hundred forty billion, seven hundred twenty-eight million, four hundred eighty-eight thousand, thirty".