2688968131 has 8 divisors (see below), whose sum is σ = 2798761680. Its totient is φ = 2580312672.

The previous prime is 2688968123. The next prime is 2688968143. The reversal of 2688968131 is 1318698862.

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 2688968131 - 2³ = 2688968123 is a prime.

It is a super-2 number, since 2×2688968131² = 14461099219067266322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2688968431) 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, 279700 + ... + 289153.

It is an arithmetic number, because the mean of its divisors is an integer number (349845210).

Almost surely, 2^2688968131 is an apocalyptic number.

2688968131 is a deficient number, since it is larger than the sum of its proper divisors (109793549).

2688968131 is a wasteful number, since it uses less digits than its factorization.

2688968131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569045.

The product of its digits is 995328, while the sum is 52.

The square root of 2688968131 is about 51855.2613627586. The cubic root of 2688968131 is about 1390.5775649593.

The spelling of 2688968131 in words is "two billion, six hundred eighty-eight million, nine hundred sixty-eight thousand, one hundred thirty-one".