2813121768 has 16 divisors (see below), whose sum is σ = 7032804480. Its totient is φ = 937707248.

The previous prime is 2813121749. The next prime is 2813121781. The reversal of 2813121768 is 8671213182.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58606680 + ... + 58606727.

It is an arithmetic number, because the mean of its divisors is an integer number (439550280).

Almost surely, 2^2813121768 is an apocalyptic number.

It is an amenable number.

2813121768 is an abundant number, since it is smaller than the sum of its proper divisors (4219682712).

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

2813121768 is a wasteful number, since it uses less digits than its factorization.

2813121768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117213416 (or 117213412 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 2813121768 is about 53038.8703499613. The cubic root of 2813121768 is about 1411.6580545176.

The spelling of 2813121768 in words is "two billion, eight hundred thirteen million, one hundred twenty-one thousand, seven hundred sixty-eight".