245393557922 has 6 divisors (see below), whose sum is σ = 368091387729. Its totient is φ = 122696428680.

The previous prime is 245393557909. The next prime is 245393558083. The reversal of 245393557922 is 229755393542.

It can be written as a sum of positive squares in 2 ways, for example, as 244788447121 + 605110801 = 494761^2 + 24599^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=350281.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 525422 + ... + 875702.

Almost surely, 2^245393557922 is an apocalyptic number.

245393557922 is a deficient number, since it is larger than the sum of its proper divisors (122697829807).

245393557922 is an frugal number, since it uses more digits than its factorization.

245393557922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700564 (or 350283 counting only the distinct ones).

The product of its digits is 20412000, while the sum is 56.

The spelling of 245393557922 in words is "two hundred forty-five billion, three hundred ninety-three million, five hundred fifty-seven thousand, nine hundred twenty-two".