2894867872 has 24 divisors (see below), whose sum is σ = 6137677476. Its totient is φ = 1336092672.

The previous prime is 2894867869. The next prime is 2894867881. The reversal of 2894867872 is 2787684982.

It can be written as a sum of positive squares in 2 ways, for example, as 2869102096 + 25765776 = 53564^2 + 5076^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2894867872.

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 3 ways as a sum of consecutive naturals, for example, 3478993 + ... + 3479824.

Almost surely, 2^2894867872 is an apocalyptic number.

It is an amenable number.

2894867872 is an abundant number, since it is smaller than the sum of its proper divisors (3242809604).

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

2894867872 is a wasteful number, since it uses less digits than its factorization.

2894867872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6958840 (or 6958832 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 61.

The square root of 2894867872 is about 53803.9763586299. The cubic root of 2894867872 is about 1425.2014278923.

The spelling of 2894867872 in words is "two billion, eight hundred ninety-four million, eight hundred sixty-seven thousand, eight hundred seventy-two".