72869692591 has 8 divisors (see below), whose sum is σ = 73875943440. Its totient is φ = 71863659072.

The previous prime is 72869692547. The next prime is 72869692631. The reversal of 72869692591 is 19529696827.

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 72869692591 - 2⁹ = 72869692079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72869692541) 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, 690921 + ... + 789373.

It is an arithmetic number, because the mean of its divisors is an integer number (9234492930).

Almost surely, 2^72869692591 is an apocalyptic number.

72869692591 is a deficient number, since it is larger than the sum of its proper divisors (1006250849).

72869692591 is a wasteful number, since it uses less digits than its factorization.

72869692591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108665.

The product of its digits is 29393280, while the sum is 64.

The spelling of 72869692591 in words is "seventy-two billion, eight hundred sixty-nine million, six hundred ninety-two thousand, five hundred ninety-one".