72344491200 has 672 divisors, whose sum is σ = 283010457600. Its totient is φ = 17920880640.

The previous prime is 72344491199. The next prime is 72344491207. The reversal of 72344491200 is 219444327.

72344491200 is a `hidden beast` number, since 7 + 2 + 3 + 4 + 449 + 1 + 200 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (72344491207) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 43501569 + ... + 43503231.

Almost surely, 2^72344491200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72344491200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141505228800).

72344491200 is an abundant number, since it is smaller than the sum of its proper divisors (210665966400).

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

72344491200 is a wasteful number, since it uses less digits than its factorization.

72344491200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766 (or 1745 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 72344491200 in words is "seventy-two billion, three hundred forty-four million, four hundred ninety-one thousand, two hundred".