2813664923 has 4 divisors (see below), whose sum is σ = 2814038640. Its totient is φ = 2813291208.

The previous prime is 2813664877. The next prime is 2813664929. The reversal of 2813664923 is 3294663182.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2813664923 - 2⁶ = 2813664859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2813664929) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 175328 + ... + 190701.

It is an arithmetic number, because the mean of its divisors is an integer number (703509660).

Almost surely, 2^2813664923 is an apocalyptic number.

2813664923 is a deficient number, since it is larger than the sum of its proper divisors (373717).

2813664923 is an equidigital number, since it uses as much as digits as its factorization.

2813664923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373716.

The product of its digits is 373248, while the sum is 44.

The square root of 2813664923 is about 53043.9904513226. The cubic root of 2813664923 is about 1411.7489025566.

The spelling of 2813664923 in words is "two billion, eight hundred thirteen million, six hundred sixty-four thousand, nine hundred twenty-three".