79391782465 has 8 divisors (see below), whose sum is σ = 95840619840. Its totient is φ = 63133105392.

The previous prime is 79391782423. The next prime is 79391782523. The reversal of 79391782465 is 56428719397.

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 79391782465 - 2¹⁷ = 79391651393 is a prime.

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, 47539155 + ... + 47540824.

It is an arithmetic number, because the mean of its divisors is an integer number (11980077480).

Almost surely, 2^79391782465 is an apocalyptic number.

It is an amenable number.

79391782465 is a deficient number, since it is larger than the sum of its proper divisors (16448837375).

79391782465 is a wasteful number, since it uses less digits than its factorization.

79391782465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95080151.

The product of its digits is 22861440, while the sum is 61.

The spelling of 79391782465 in words is "seventy-nine billion, three hundred ninety-one million, seven hundred eighty-two thousand, four hundred sixty-five".