18000028110736 has 45 divisors (see below), whose sum is σ = 40569208650651. Its totient is φ = 7714246850016.

The previous prime is 18000028110709. The next prime is 18000028110737. The reversal of 18000028110736 is 63701182000081.

The square root of 18000028110736 is 4242644.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18000028110695 and 18000028110704.

It is not an unprimeable number, because it can be changed into a prime (18000028110737) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 118718271 + ... + 118869793.

Almost surely, 2^{18000028110736} is an apocalyptic number.

18000028110736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

18000028110736 is the 4242644-th square number.

It is an amenable number.

18000028110736 is an abundant number, since it is smaller than the sum of its proper divisors (22569180539915).

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

18000028110736 is an frugal number, since it uses more digits than its factorization.

18000028110736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303068 (or 151532 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 18000028110736 in words is "eighteen trillion, twenty-eight million, one hundred ten thousand, seven hundred thirty-six".