2881387263 has 4 divisors (see below), whose sum is σ = 3841849688. Its totient is φ = 1920924840.

The previous prime is 2881387253. The next prime is 2881387279. The reversal of 2881387263 is 3627831882.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2881387263 - 2⁹ = 2881386751 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 (2881387213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480231208 + ... + 480231213.

It is an arithmetic number, because the mean of its divisors is an integer number (960462422).

Almost surely, 2^2881387263 is an apocalyptic number.

2881387263 is a deficient number, since it is larger than the sum of its proper divisors (960462425).

2881387263 is an equidigital number, since it uses as much as digits as its factorization.

2881387263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960462424.

The product of its digits is 774144, while the sum is 48.

The square root of 2881387263 is about 53678.5549637842. The cubic root of 2881387263 is about 1422.9857270930.

The spelling of 2881387263 in words is "two billion, eight hundred eighty-one million, three hundred eighty-seven thousand, two hundred sixty-three".