18750728930 has 32 divisors (see below), whose sum is σ = 35580729600. Its totient is φ = 7094932992.

The previous prime is 18750728923. The next prime is 18750728977. The reversal of 18750728930 is 3982705781.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54551 + ... + 201189.

It is an arithmetic number, because the mean of its divisors is an integer number (1111897800).

Almost surely, 2^18750728930 is an apocalyptic number.

18750728930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18750728930 is a deficient number, since it is larger than the sum of its proper divisors (16830000670).

18750728930 is a wasteful number, since it uses less digits than its factorization.

18750728930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147338.

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 18750728930 in words is "eighteen billion, seven hundred fifty million, seven hundred twenty-eight thousand, nine hundred thirty".