18423730016 has 48 divisors (see below), whose sum is σ = 36514502640. Its totient is φ = 9150382080.

The previous prime is 18423729979. The next prime is 18423730103. The reversal of 18423730016 is 61003732481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3893540 + ... + 3898268.

It is an arithmetic number, because the mean of its divisors is an integer number (760718805).

Almost surely, 2^18423730016 is an apocalyptic number.

18423730016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18423730016 is a deficient number, since it is larger than the sum of its proper divisors (18090772624).

18423730016 is a wasteful number, since it uses less digits than its factorization.

18423730016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527 (or 5519 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 18423730016 in words is "eighteen billion, four hundred twenty-three million, seven hundred thirty thousand, sixteen".