2688242331 has 4 divisors (see below), whose sum is σ = 3584323112. Its totient is φ = 1792161552.

The previous prime is 2688242299. The next prime is 2688242353. The reversal of 2688242331 is 1332428862.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2688242331 - 2⁵ = 2688242299 is a prime.

It is a super-2 number, since 2×2688242331² = 14453293660360627122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2688242331.

It is not an unprimeable number, because it can be changed into a prime (2688244331) 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, 448040386 + ... + 448040391.

It is an arithmetic number, because the mean of its divisors is an integer number (896080778).

Almost surely, 2^2688242331 is an apocalyptic number.

2688242331 is a deficient number, since it is larger than the sum of its proper divisors (896080781).

2688242331 is an equidigital number, since it uses as much as digits as its factorization.

2688242331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896080780.

The product of its digits is 110592, while the sum is 39.

The square root of 2688242331 is about 51848.2625649115. The cubic root of 2688242331 is about 1390.4524398842.

The spelling of 2688242331 in words is "two billion, six hundred eighty-eight million, two hundred forty-two thousand, three hundred thirty-one".