790475570021 has 4 divisors (see below), whose sum is σ = 790477348332. Its totient is φ = 790473791712.

The previous prime is 790475569951. The next prime is 790475570039. The reversal of 790475570021 is 120075574097.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 401366596225 + 389108973796 = 633535^2 + 623786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-790475570021 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 (790475270021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428075 + ... + 1328231.

It is an arithmetic number, because the mean of its divisors is an integer number (197619337083).

Almost surely, 2^790475570021 is an apocalyptic number.

It is an amenable number.

790475570021 is a deficient number, since it is larger than the sum of its proper divisors (1778311).

790475570021 is an equidigital number, since it uses as much as digits as its factorization.

790475570021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778310.

The product of its (nonzero) digits is 617400, while the sum is 47.

The spelling of 790475570021 in words is "seven hundred ninety billion, four hundred seventy-five million, five hundred seventy thousand, twenty-one".