56867308872 has 128 divisors (see below), whose sum is σ = 164602368000. Its totient is φ = 16180659200.

The previous prime is 56867308831. The next prime is 56867308933. The reversal of 56867308872 is 27880376865.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1919629 + ... + 1949027.

It is an arithmetic number, because the mean of its divisors is an integer number (1285956000).

Almost surely, 2^56867308872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56867308872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82301184000).

56867308872 is an abundant number, since it is smaller than the sum of its proper divisors (107735059128).

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

56867308872 is a wasteful number, since it uses less digits than its factorization.

56867308872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29867 (or 29863 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 60.

The spelling of 56867308872 in words is "fifty-six billion, eight hundred sixty-seven million, three hundred eight thousand, eight hundred seventy-two".