72370706400 has 432 divisors, whose sum is σ = 265091626800. Its totient is φ = 18556231680.

The previous prime is 72370706363. The next prime is 72370706461. The reversal of 72370706400 is 460707327.

72370706400 is a `hidden beast` number, since 7 + 2 + 3 + 7 + 0 + 7 + 0 + 640 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 64101036 + ... + 64102164.

It is an arithmetic number, because the mean of its divisors is an integer number (613638025).

Almost surely, 2^72370706400 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 72370706400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132545813400).

72370706400 is an abundant number, since it is smaller than the sum of its proper divisors (192720920400).

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

72370706400 is a wasteful number, since it uses less digits than its factorization.

72370706400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491 (or 1475 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The spelling of 72370706400 in words is "seventy-two billion, three hundred seventy million, seven hundred six thousand, four hundred".