2811878245 has 16 divisors (see below), whose sum is σ = 3694313088. Its totient is φ = 2037608640.

The previous prime is 2811878239. The next prime is 2811878257. The reversal of 2811878245 is 5428781182.

It is not a de Polignac number, because 2811878245 - 2⁵ = 2811878213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2811878195 and 2811878204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77049 + ... + 107518.

It is an arithmetic number, because the mean of its divisors is an integer number (230894568).

Almost surely, 2^2811878245 is an apocalyptic number.

It is an amenable number.

2811878245 is a deficient number, since it is larger than the sum of its proper divisors (882434843).

2811878245 is a wasteful number, since it uses less digits than its factorization.

2811878245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184860.

The product of its digits is 286720, while the sum is 46.

The square root of 2811878245 is about 53027.1463026250. The cubic root of 2811878245 is about 1411.4500189701.

The spelling of 2811878245 in words is "two billion, eight hundred eleven million, eight hundred seventy-eight thousand, two hundred forty-five".