2881252816 has 20 divisors (see below), whose sum is σ = 6011845252. Its totient is φ = 1329808896.

The previous prime is 2881252771. The next prime is 2881252817. The reversal of 2881252816 is 6182521882.

It can be written as a sum of positive squares in 2 ways, for example, as 1785907600 + 1095345216 = 42260^2 + 33096^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2881252817) 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, 6925881 + ... + 6926296.

Almost surely, 2^2881252816 is an apocalyptic number.

2881252816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2881252816 is an abundant number, since it is smaller than the sum of its proper divisors (3130592436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2881252816 is a wasteful number, since it uses less digits than its factorization.

2881252816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13852198 (or 13852192 counting only the distinct ones).

The product of its digits is 122880, while the sum is 43.

The square root of 2881252816 is about 53677.3026147924. The cubic root of 2881252816 is about 1422.9635943354.

The spelling of 2881252816 in words is "two billion, eight hundred eighty-one million, two hundred fifty-two thousand, eight hundred sixteen".