56431101870 has 320 divisors, whose sum is σ = 179673500160. Its totient is φ = 12528172800.

The previous prime is 56431101773. The next prime is 56431101893. The reversal of 56431101870 is 7810113465.

56431101870 is a `hidden beast` number, since 5 + 643 + 1 + 1 + 0 + 1 + 8 + 7 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

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 159 ways as a sum of consecutive naturals, for example, 15171871 + ... + 15175589.

It is an arithmetic number, because the mean of its divisors is an integer number (561479688).

Almost surely, 2^56431101870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56431101870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89836750080).

56431101870 is an abundant number, since it is smaller than the sum of its proper divisors (123242398290).

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

56431101870 is a wasteful number, since it uses less digits than its factorization.

56431101870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893 (or 3884 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 56431101870 in words is "fifty-six billion, four hundred thirty-one million, one hundred one thousand, eight hundred seventy".