2797851889 has 16 divisors (see below), whose sum is σ = 3275395200. Its totient is φ = 2339890560.

The previous prime is 2797851887. The next prime is 2797851893. The reversal of 2797851889 is 9881587972.

It is not a de Polignac number, because 2797851889 - 2¹ = 2797851887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2797851889.

It is not an unprimeable number, because it can be changed into a prime (2797851887) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 311319 + ... + 320179.

It is an arithmetic number, because the mean of its divisors is an integer number (204712200).

Almost surely, 2^2797851889 is an apocalyptic number.

It is an amenable number.

2797851889 is a deficient number, since it is larger than the sum of its proper divisors (477543311).

2797851889 is a wasteful number, since it uses less digits than its factorization.

2797851889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9960.

The product of its digits is 20321280, while the sum is 64.

The square root of 2797851889 is about 52894.7245857278. The cubic root of 2797851889 is about 1409.0992165826.

The spelling of 2797851889 in words is "two billion, seven hundred ninety-seven million, eight hundred fifty-one thousand, eight hundred eighty-nine".