2856872500 has 60 divisors (see below), whose sum is σ = 6263345088. Its totient is φ = 1139836000.

The previous prime is 2856872489. The next prime is 2856872537. The reversal of 2856872500 is 52786582.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1166277 + ... + 1168723.

Almost surely, 2^2856872500 is an apocalyptic number.

2856872500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2856872500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3131672544).

2856872500 is an abundant number, since it is smaller than the sum of its proper divisors (3406472588).

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

2856872500 is a wasteful number, since it uses less digits than its factorization.

2856872500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938 (or 2921 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 2856872500 is about 53449.7193631548. The cubic root of 2856872500 is about 1418.9386534568.

The spelling of 2856872500 in words is "two billion, eight hundred fifty-six million, eight hundred seventy-two thousand, five hundred".