72399003312 has 90 divisors (see below), whose sum is σ = 190049535084. Its totient is φ = 23749602240.

The previous prime is 72399003301. The next prime is 72399003329. The reversal of 72399003312 is 21330099327.

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 17 ways as a sum of consecutive naturals, for example, 132356223 + ... + 132356769.

Almost surely, 2^72399003312 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 72399003312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95024767542).

72399003312 is an abundant number, since it is smaller than the sum of its proper divisors (117650531772).

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

72399003312 is an frugal number, since it uses more digits than its factorization.

72399003312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 39.

The spelling of 72399003312 in words is "seventy-two billion, three hundred ninety-nine million, three thousand, three hundred twelve".