1797312568 has 32 divisors (see below), whose sum is σ = 3417163200. Its totient is φ = 886099968.

The previous prime is 1797312563. The next prime is 1797312593. The reversal of 1797312568 is 8652137971.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1797312563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651480 + ... + 654232.

It is an arithmetic number, because the mean of its divisors is an integer number (106786350).

Almost surely, 2^1797312568 is an apocalyptic number.

It is an amenable number.

1797312568 is a deficient number, since it is larger than the sum of its proper divisors (1619850632).

1797312568 is a wasteful number, since it uses less digits than its factorization.

1797312568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3871 (or 3867 counting only the distinct ones).

The product of its digits is 635040, while the sum is 49.

The square root of 1797312568 is about 42394.7233509077. The cubic root of 1797312568 is about 1215.8347085318.

The spelling of 1797312568 in words is "one billion, seven hundred ninety-seven million, three hundred twelve thousand, five hundred sixty-eight".