2887421663 has 16 divisors (see below), whose sum is σ = 3407669760. Its totient is φ = 2395171296.

The previous prime is 2887421653. The next prime is 2887421671. The reversal of 2887421663 is 3661247882.

It is not a de Polignac number, because 2887421663 - 2¹⁸ = 2887159519 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2887421653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11195 + ... + 76812.

It is an arithmetic number, because the mean of its divisors is an integer number (212979360).

Almost surely, 2^2887421663 is an apocalyptic number.

2887421663 is a deficient number, since it is larger than the sum of its proper divisors (520248097).

2887421663 is a wasteful number, since it uses less digits than its factorization.

2887421663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88166.

The product of its digits is 774144, while the sum is 47.

The square root of 2887421663 is about 53734.7342321519. The cubic root of 2887421663 is about 1423.9784060646.

The spelling of 2887421663 in words is "two billion, eight hundred eighty-seven million, four hundred twenty-one thousand, six hundred sixty-three".