2788672823 has 4 divisors (see below), whose sum is σ = 2788889208. Its totient is φ = 2788456440.

The previous prime is 2788672813. The next prime is 2788672829. The reversal of 2788672823 is 3282768872.

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 2788672823 - 2¹⁴ = 2788656439 is a prime.

It is a super-2 number, since 2×2788672823² = 15553392227477578658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788672829) 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, 87548 + ... + 115073.

It is an arithmetic number, because the mean of its divisors is an integer number (697222302).

Almost surely, 2^2788672823 is an apocalyptic number.

2788672823 is a deficient number, since it is larger than the sum of its proper divisors (216385).

2788672823 is a wasteful number, since it uses less digits than its factorization.

2788672823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216384.

The product of its digits is 3612672, while the sum is 53.

The square root of 2788672823 is about 52807.8859925296. The cubic root of 2788672823 is about 1407.5565586527.

The spelling of 2788672823 in words is "two billion, seven hundred eighty-eight million, six hundred seventy-two thousand, eight hundred twenty-three".