2816780923 has 8 divisors (see below), whose sum is σ = 3138232320. Its totient is φ = 2506226280.

The previous prime is 2816780917. The next prime is 2816780927. The reversal of 2816780923 is 3290876182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2816780923 - 2²¹ = 2814683771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2816780927) 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 7 ways as a sum of consecutive naturals, for example, 2723643 + ... + 2724676.

It is an arithmetic number, because the mean of its divisors is an integer number (392279040).

Almost surely, 2^2816780923 is an apocalyptic number.

2816780923 is a deficient number, since it is larger than the sum of its proper divisors (321451397).

2816780923 is a wasteful number, since it uses less digits than its factorization.

2816780923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5448377.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 2816780923 is about 53073.3541713730. The cubic root of 2816780923 is about 1412.2698585341.

The spelling of 2816780923 in words is "two billion, eight hundred sixteen million, seven hundred eighty thousand, nine hundred twenty-three".