56273163858 has 96 divisors (see below), whose sum is σ = 128401955136. Its totient is φ = 18468373248.

The previous prime is 56273163857. The next prime is 56273163893. The reversal of 56273163858 is 85836137265.

56273163858 is a `hidden beast` number, since 5 + 627 + 3 + 1 + 6 + 3 + 8 + 5 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (56273163857) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12623566 + ... + 12628022.

It is an arithmetic number, because the mean of its divisors is an integer number (1337520366).

Almost surely, 2^56273163858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56273163858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64200977568).

56273163858 is an abundant number, since it is smaller than the sum of its proper divisors (72128791278).

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

56273163858 is a wasteful number, since it uses less digits than its factorization.

56273163858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4870 (or 4858 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 56273163858 in words is "fifty-six billion, two hundred seventy-three million, one hundred sixty-three thousand, eight hundred fifty-eight".