2813878116 has 135 divisors (see below), whose sum is σ = 8577391977. Its totient is φ = 802055520.

The previous prime is 2813878069. The next prime is 2813878117. The reversal of 2813878116 is 6118783182.

It is a happy number.

The square root of 2813878116 is 53046.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 13351716 + 2800526400 = 3654^2 + 52920^2 .

It is not an unprimeable number, because it can be changed into a prime (2813878117) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 6683586 + ... + 6684006.

Almost surely, 2^2813878116 is an apocalyptic number.

2813878116 is the 53046-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2813878116

2813878116 is an abundant number, since it is smaller than the sum of its proper divisors (5763513861).

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

2813878116 is an equidigital number, since it uses as much as digits as its factorization.

2813878116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 433 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The cubic root of 2813878116 is about 1411.7845579966.

The spelling of 2813878116 in words is "two billion, eight hundred thirteen million, eight hundred seventy-eight thousand, one hundred sixteen".