2688423999 has 16 divisors (see below), whose sum is σ = 3605102592. Its totient is φ = 1782034848.

The previous prime is 2688423971. The next prime is 2688424003. The reversal of 2688423999 is 9993248862.

It is a happy number.

It is not a de Polignac number, because 2688423999 - 2¹⁵ = 2688391231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688423919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 675714 + ... + 679680.

It is an arithmetic number, because the mean of its divisors is an integer number (225318912).

Almost surely, 2^2688423999 is an apocalyptic number.

2688423999 is a deficient number, since it is larger than the sum of its proper divisors (916678593).

2688423999 is a wasteful number, since it uses less digits than its factorization.

2688423999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5206.

The product of its digits is 13436928, while the sum is 60.

The square root of 2688423999 is about 51850.0144551571. The cubic root of 2688423999 is about 1390.4837608482.

The spelling of 2688423999 in words is "two billion, six hundred eighty-eight million, four hundred twenty-three thousand, nine hundred ninety-nine".