56709395544 has 32 divisors (see below), whose sum is σ = 142493163120. Its totient is φ = 18807175296.

The previous prime is 56709395543. The next prime is 56709395569. The reversal of 56709395544 is 44559390765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56709395543) 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, 5992459 + ... + 6001914.

Almost surely, 2^56709395544 is an apocalyptic number.

It is an amenable number.

56709395544 is an abundant number, since it is smaller than the sum of its proper divisors (85783767576).

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

56709395544 is a wasteful number, since it uses less digits than its factorization.

56709395544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11994579 (or 11994575 counting only the distinct ones).

The product of its (nonzero) digits is 20412000, while the sum is 57.

The spelling of 56709395544 in words is "fifty-six billion, seven hundred nine million, three hundred ninety-five thousand, five hundred forty-four".