791969728485599 has 4 divisors (see below), whose sum is σ = 796394140376760. Its totient is φ = 787545316594440.

The previous prime is 791969728485581. The next prime is 791969728485643. The reversal of 791969728485599 is 995584827969197.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-791969728485599 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 (791969728481599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2212205945312 + ... + 2212205945669.

It is an arithmetic number, because the mean of its divisors is an integer number (199098535094190).

Almost surely, 2^{791969728485599} is an apocalyptic number.

791969728485599 is a deficient number, since it is larger than the sum of its proper divisors (4424411891161).

791969728485599 is a wasteful number, since it uses less digits than its factorization.

791969728485599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4424411891160.

The product of its digits is 222213196800, while the sum is 98.

The spelling of 791969728485599 in words is "seven hundred ninety-one trillion, nine hundred sixty-nine billion, seven hundred twenty-eight million, four hundred eighty-five thousand, five hundred ninety-nine".