72999909000 has 96 divisors (see below), whose sum is σ = 246739722840. Its totient is φ = 19466640000.

The previous prime is 72999908953. The next prime is 72999909011. The reversal of 72999909000 is 90999927.

It can be written as a sum of positive squares in 4 ways, for example, as 32957497764 + 40042411236 = 181542^2 + 200106^2 .

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 23 ways as a sum of consecutive naturals, for example, 4046551 + ... + 4064550.

Almost surely, 2^72999909000 is an apocalyptic number.

It is an amenable number.

72999909000 is an abundant number, since it is smaller than the sum of its proper divisors (173739813840).

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

72999909000 is a wasteful number, since it uses less digits than its factorization.

72999909000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8111128 (or 8111111 counting only the distinct ones).

The product of its (nonzero) digits is 826686, while the sum is 54.

The spelling of 72999909000 in words is "seventy-two billion, nine hundred ninety-nine million, nine hundred nine thousand".