790140075691 has 4 divisors (see below), whose sum is σ = 790142387112. Its totient is φ = 790137764272.

The previous prime is 790140075629. The next prime is 790140075719. The reversal of 790140075691 is 196570041097.

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-790140075691 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (790140079691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530041 + ... + 1364266.

It is an arithmetic number, because the mean of its divisors is an integer number (197535596778).

Almost surely, 2^790140075691 is an apocalyptic number.

790140075691 is a deficient number, since it is larger than the sum of its proper divisors (2311421).

790140075691 is a wasteful number, since it uses less digits than its factorization.

790140075691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2311420.

The product of its (nonzero) digits is 476280, while the sum is 49.

The spelling of 790140075691 in words is "seven hundred ninety billion, one hundred forty million, seventy-five thousand, six hundred ninety-one".