72994380800 has 132 divisors (see below), whose sum is σ = 197387313576. Its totient is φ = 26543308800.

The previous prime is 72994380799. The next prime is 72994380817. The reversal of 72994380800 is 808349927.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151994 + ... + 411206.

Almost surely, 2^72994380800 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 72994380800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98693656788).

72994380800 is an abundant number, since it is smaller than the sum of its proper divisors (124392932776).

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

72994380800 is a wasteful number, since it uses less digits than its factorization.

72994380800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259254 (or 259231 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 72994380800 in words is "seventy-two billion, nine hundred ninety-four million, three hundred eighty thousand, eight hundred".