2275861887 has 16 divisors (see below), whose sum is σ = 3631005280. Its totient is φ = 1400530176.

The previous prime is 2275861879. The next prime is 2275861901. The reversal of 2275861887 is 7881685722.

It is not a de Polignac number, because 2275861887 - 2³ = 2275861879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2275861867) 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, 3241618 + ... + 3242319.

It is an arithmetic number, because the mean of its divisors is an integer number (226937830).

Almost surely, 2^2275861887 is an apocalyptic number.

2275861887 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2275861887 is a deficient number, since it is larger than the sum of its proper divisors (1355143393).

2275861887 is a wasteful number, since it uses less digits than its factorization.

2275861887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6483959 (or 6483953 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 54.

The square root of 2275861887 is about 47705.9942460064. The cubic root of 2275861887 is about 1315.3721254041.

The spelling of 2275861887 in words is "two billion, two hundred seventy-five million, eight hundred sixty-one thousand, eight hundred eighty-seven".