72752009617 has 8 divisors (see below), whose sum is σ = 83247682112. Its totient is φ = 62281969200.

The previous prime is 72752009599. The next prime is 72752009639. The reversal of 72752009617 is 71690025727.

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-72752009617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72752009117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6401934 + ... + 6413287.

It is an arithmetic number, because the mean of its divisors is an integer number (10405960264).

Almost surely, 2^72752009617 is an apocalyptic number.

It is an amenable number.

72752009617 is a deficient number, since it is larger than the sum of its proper divisors (10495672495).

72752009617 is a wasteful number, since it uses less digits than its factorization.

72752009617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12816039.

The product of its (nonzero) digits is 370440, while the sum is 46.

The spelling of 72752009617 in words is "seventy-two billion, seven hundred fifty-two million, nine thousand, six hundred seventeen".