2887221045 has 32 divisors (see below), whose sum is σ = 4725941760. Its totient is φ = 1504501760.

The previous prime is 2887221023. The next prime is 2887221049. The reversal of 2887221045 is 5401227882.

It is not a de Polignac number, because 2887221045 - 2⁵ = 2887221013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2887220994 and 2887221012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2887221049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 448711 + ... + 455099.

It is an arithmetic number, because the mean of its divisors is an integer number (147685680).

Almost surely, 2^2887221045 is an apocalyptic number.

It is an amenable number.

2887221045 is a deficient number, since it is larger than the sum of its proper divisors (1838720715).

2887221045 is a wasteful number, since it uses less digits than its factorization.

2887221045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7085.

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 2887221045 is about 53732.8674555900. The cubic root of 2887221045 is about 1423.9454259703.

The spelling of 2887221045 in words is "two billion, eight hundred eighty-seven million, two hundred twenty-one thousand, forty-five".