18304995072 has 864 divisors, whose sum is σ = 67645476864. Its totient is φ = 4335206400.

The previous prime is 18304995053. The next prime is 18304995101. The reversal of 18304995072 is 27059940381.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 257816797 + ... + 257816867.

It is an arithmetic number, because the mean of its divisors is an integer number (78293376).

Almost surely, 2^18304995072 is an apocalyptic number.

18304995072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18304995072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33822738432).

18304995072 is an abundant number, since it is smaller than the sum of its proper divisors (49340481792).

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

18304995072 is a wasteful number, since it uses less digits than its factorization.

18304995072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 18304995072 in words is "eighteen billion, three hundred four million, nine hundred ninety-five thousand, seventy-two".