56939212728 has 48 divisors (see below), whose sum is σ = 154258350480. Its totient is φ = 18973832064.

The previous prime is 56939212727. The next prime is 56939212867. The reversal of 56939212728 is 82721293965.

56939212728 is a `hidden beast` number, since 569 + 3 + 9 + 2 + 1 + 2 + 72 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56939212727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113101 + ... + 355907.

It is an arithmetic number, because the mean of its divisors is an integer number (3213715635).

Almost surely, 2^56939212728 is an apocalyptic number.

It is an amenable number.

56939212728 is an abundant number, since it is smaller than the sum of its proper divisors (97319137752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56939212728 is a wasteful number, since it uses less digits than its factorization.

56939212728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246076 (or 246069 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 56939212728 in words is "fifty-six billion, nine hundred thirty-nine million, two hundred twelve thousand, seven hundred twenty-eight".