2628205887 has 16 divisors (see below), whose sum is σ = 3531127808. Its totient is φ = 1738735200.

The previous prime is 2628205859. The next prime is 2628205889. The reversal of 2628205887 is 7885028262.

It is not a de Polignac number, because 2628205887 - 2⁷ = 2628205759 is a prime.

It is a super-2 number, since 2×2628205887² = 13814932368922913538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2628205889) 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, 547098 + ... + 551880.

It is an arithmetic number, because the mean of its divisors is an integer number (220695488).

Almost surely, 2^2628205887 is an apocalyptic number.

2628205887 is a deficient number, since it is larger than the sum of its proper divisors (902921921).

2628205887 is a wasteful number, since it uses less digits than its factorization.

2628205887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6150.

The product of its (nonzero) digits is 860160, while the sum is 48.

The square root of 2628205887 is about 51266.0305367989. The cubic root of 2628205887 is about 1380.0234342796.

The spelling of 2628205887 in words is "two billion, six hundred twenty-eight million, two hundred five thousand, eight hundred eighty-seven".