56172283890 has 16 divisors (see below), whose sum is σ = 134813481408. Its totient is φ = 14979275696.

The previous prime is 56172283859. The next prime is 56172283897. The reversal of 56172283890 is 9838227165.

It is not an unprimeable number, because it can be changed into a prime (56172283897) 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, 936204702 + ... + 936204761.

It is an arithmetic number, because the mean of its divisors is an integer number (8425842588).

Almost surely, 2^56172283890 is an apocalyptic number.

56172283890 is an abundant number, since it is smaller than the sum of its proper divisors (78641197518).

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

56172283890 is a wasteful number, since it uses less digits than its factorization.

56172283890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872409473.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 56172283890 in words is "fifty-six billion, one hundred seventy-two million, two hundred eighty-three thousand, eight hundred ninety".