791546645 has 4 divisors (see below), whose sum is σ = 949855980. Its totient is φ = 633237312.

The previous prime is 791546627. The next prime is 791546683. The reversal of 791546645 is 546645197.

791546645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 342361009 + 449185636 = 18503^2 + 21194^2 .

It is a cyclic number.

It is not a de Polignac number, because 791546645 - 2¹⁶ = 791481109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 791546645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79154660 + ... + 79154669.

It is an arithmetic number, because the mean of its divisors is an integer number (237463995).

Almost surely, 2^791546645 is an apocalyptic number.

It is an amenable number.

791546645 is a deficient number, since it is larger than the sum of its proper divisors (158309335).

791546645 is a wasteful number, since it uses less digits than its factorization.

791546645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158309334.

The product of its digits is 907200, while the sum is 47.

The square root of 791546645 is about 28134.4387717260. The cubic root of 791546645 is about 925.0364319715.

The spelling of 791546645 in words is "seven hundred ninety-one million, five hundred forty-six thousand, six hundred forty-five".