72875552689 has 8 divisors (see below), whose sum is σ = 77165819208. Its totient is φ = 68585671680.

The previous prime is 72875552683. The next prime is 72875552731. The reversal of 72875552689 is 98625557827.

It can be written as a sum of positive squares in 4 ways, for example, as 9262137600 + 63613415089 = 96240^2 + 252217^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 72875552689 - 2⁹ = 72875552177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72875552689.

It is not an unprimeable number, because it can be changed into a prime (72875552683) 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, 352629 + ... + 519709.

It is an arithmetic number, because the mean of its divisors is an integer number (9645727401).

Almost surely, 2^72875552689 is an apocalyptic number.

It is an amenable number.

72875552689 is a deficient number, since it is larger than the sum of its proper divisors (4290266519).

72875552689 is a wasteful number, since it uses less digits than its factorization.

72875552689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192755.

The product of its digits is 84672000, while the sum is 64.

The spelling of 72875552689 in words is "seventy-two billion, eight hundred seventy-five million, five hundred fifty-two thousand, six hundred eighty-nine".