2813947908 has 12 divisors (see below), whose sum is σ = 6565878480. Its totient is φ = 937982632.

The previous prime is 2813947897. The next prime is 2813947909. The reversal of 2813947908 is 8097493182.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2813947909) 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, 117247818 + ... + 117247841.

It is an arithmetic number, because the mean of its divisors is an integer number (547156540).

Almost surely, 2^2813947908 is an apocalyptic number.

It is an amenable number.

2813947908 is an abundant number, since it is smaller than the sum of its proper divisors (3751930572).

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

2813947908 is a wasteful number, since it uses less digits than its factorization.

2813947908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234495666 (or 234495664 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 2813947908 is about 53046.6578400562. The cubic root of 2813947908 is about 1411.7962299607.

The spelling of 2813947908 in words is "two billion, eight hundred thirteen million, nine hundred forty-seven thousand, nine hundred eight".