18049348800 has 672 divisors, whose sum is σ = 79642045440. Its totient is φ = 3881779200.

The previous prime is 18049348787. The next prime is 18049348841. The reversal of 18049348800 is 884394081.

18049348800 is a `hidden beast` number, since 1 + 80 + 4 + 93 + 488 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a super-2 number, since 2×18049348800² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 5139045 + ... + 5142555.

Almost surely, 2^18049348800 is an apocalyptic number.

18049348800 is a gapful number since it is divisible by the number (10) 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 18049348800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39821022720).

18049348800 is an abundant number, since it is smaller than the sum of its proper divisors (61592696640).

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

18049348800 is a wasteful number, since it uses less digits than its factorization.

18049348800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566 (or 3545 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 18049348800 in words is "eighteen billion, forty-nine million, three hundred forty-eight thousand, eight hundred".