56842871328 has 72 divisors (see below), whose sum is σ = 162919830528. Its totient is φ = 18798417792.

The previous prime is 56842871297. The next prime is 56842871333. The reversal of 56842871328 is 82317824865.

56842871328 is a `hidden beast` number, since 568 + 4 + 2 + 8 + 71 + 3 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×56842871328² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 740476 + ... + 813627.

It is an arithmetic number, because the mean of its divisors is an integer number (2262775424).

Almost surely, 2^56842871328 is an apocalyptic number.

It is an amenable number.

56842871328 is an abundant number, since it is smaller than the sum of its proper divisors (106076959200).

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

56842871328 is a wasteful number, since it uses less digits than its factorization.

56842871328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554246 (or 1554235 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 56842871328 in words is "fifty-six billion, eight hundred forty-two million, eight hundred seventy-one thousand, three hundred twenty-eight".