2688316931 has 8 divisors (see below), whose sum is σ = 2775636864. Its totient is φ = 2601034560.

The previous prime is 2688316901. The next prime is 2688316979. The reversal of 2688316931 is 1396138862.

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 2688316931 - 2¹⁰ = 2688315907 is a prime.

It is a super-2 number, since 2×2688316931² = 14454095843002517522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2688316901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251855 + ... + 262311.

It is an arithmetic number, because the mean of its divisors is an integer number (346954608).

Almost surely, 2^2688316931 is an apocalyptic number.

2688316931 is a deficient number, since it is larger than the sum of its proper divisors (87319933).

2688316931 is a wasteful number, since it uses less digits than its factorization.

2688316931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18781.

The product of its digits is 373248, while the sum is 47.

The square root of 2688316931 is about 51848.9819668622. The cubic root of 2688316931 is about 1390.4653016702.

The spelling of 2688316931 in words is "two billion, six hundred eighty-eight million, three hundred sixteen thousand, nine hundred thirty-one".