56712846891 has 8 divisors (see below), whose sum is σ = 75627307584. Its totient is φ = 37803475400.

The previous prime is 56712846881. The next prime is 56712846943. The reversal of 56712846891 is 19864821765.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56712846891 - 2¹¹ = 56712844843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56712846871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1246221 + ... + 1290926.

It is an arithmetic number, because the mean of its divisors is an integer number (9453413448).

Almost surely, 2^56712846891 is an apocalyptic number.

56712846891 is a deficient number, since it is larger than the sum of its proper divisors (18914460693).

56712846891 is a wasteful number, since it uses less digits than its factorization.

56712846891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544601.

The product of its digits is 5806080, while the sum is 57.

The spelling of 56712846891 in words is "fifty-six billion, seven hundred twelve million, eight hundred forty-six thousand, eight hundred ninety-one".