72990720035 has 8 divisors (see below), whose sum is σ = 88697584320. Its totient is φ = 57653429184.

The previous prime is 72990719981. The next prime is 72990720043. The reversal of 72990720035 is 53002709927.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72990720035 is a prime.

It is a super-2 number, since 2×72990720035² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92392922 + ... + 92393711.

It is an arithmetic number, because the mean of its divisors is an integer number (11087198040).

Almost surely, 2^72990720035 is an apocalyptic number.

72990720035 is a deficient number, since it is larger than the sum of its proper divisors (15706864285).

72990720035 is a wasteful number, since it uses less digits than its factorization.

72990720035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184786717.

The product of its (nonzero) digits is 238140, while the sum is 44.

The spelling of 72990720035 in words is "seventy-two billion, nine hundred ninety million, seven hundred twenty thousand, thirty-five".