56840757328 has 20 divisors (see below), whose sum is σ = 110699589748. Its totient is φ = 28273121280.

The previous prime is 56840757319. The next prime is 56840757329. The reversal of 56840757328 is 82375704865.

It can be written as a sum of positive squares in 2 ways, for example, as 29552360464 + 27288396864 = 171908^2 + 165192^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56840757329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9200403 + ... + 9206578.

Almost surely, 2^56840757328 is an apocalyptic number.

It is an amenable number.

56840757328 is a deficient number, since it is larger than the sum of its proper divisors (53858832420).

56840757328 is a wasteful number, since it uses less digits than its factorization.

56840757328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18407182 (or 18407176 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 55.

The spelling of 56840757328 in words is "fifty-six billion, eight hundred forty million, seven hundred fifty-seven thousand, three hundred twenty-eight".