18944133730 has 16 divisors (see below), whose sum is σ = 35894148480. Its totient is φ = 7178829552.

The previous prime is 18944133727. The next prime is 18944133743. The reversal of 18944133730 is 3733144981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49852794 + ... + 49853173.

It is an arithmetic number, because the mean of its divisors is an integer number (2243384280).

Almost surely, 2^18944133730 is an apocalyptic number.

18944133730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18944133730 is a deficient number, since it is larger than the sum of its proper divisors (16950014750).

18944133730 is a wasteful number, since it uses less digits than its factorization.

18944133730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99705993.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 18944133730 in words is "eighteen billion, nine hundred forty-four million, one hundred thirty-three thousand, seven hundred thirty".