791313021322 has 4 divisors (see below), whose sum is σ = 1186969531986. Its totient is φ = 395656510660.

The previous prime is 791313021259. The next prime is 791313021337. The reversal of 791313021322 is 223120313197.

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

It can be written as a sum of positive squares in only one way, i.e., 748555466481 + 42757554841 = 865191^2 + 206779^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 197828255329 + ... + 197828255332.

Almost surely, 2^791313021322 is an apocalyptic number.

791313021322 is a deficient number, since it is larger than the sum of its proper divisors (395656510664).

791313021322 is a wasteful number, since it uses less digits than its factorization.

791313021322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395656510663.

The product of its (nonzero) digits is 13608, while the sum is 34.

The spelling of 791313021322 in words is "seven hundred ninety-one billion, three hundred thirteen million, twenty-one thousand, three hundred twenty-two".