2856581372 has 12 divisors (see below), whose sum is σ = 5262123720. Its totient is φ = 1353117456.

The previous prime is 2856581359. The next prime is 2856581419. The reversal of 2856581372 is 2731856582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18793223 + ... + 18793374.

It is an arithmetic number, because the mean of its divisors is an integer number (438510310).

Almost surely, 2^2856581372 is an apocalyptic number.

It is an amenable number.

2856581372 is a deficient number, since it is larger than the sum of its proper divisors (2405542348).

2856581372 is a wasteful number, since it uses less digits than its factorization.

2856581372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37586620 (or 37586618 counting only the distinct ones).

The product of its digits is 806400, while the sum is 47.

The square root of 2856581372 is about 53446.9959118377. The cubic root of 2856581372 is about 1418.8904531019.

The spelling of 2856581372 in words is "two billion, eight hundred fifty-six million, five hundred eighty-one thousand, three hundred seventy-two".