2688115278 has 16 divisors (see below), whose sum is σ = 5380179840. Its totient is φ = 895380216.

The previous prime is 2688115277. The next prime is 2688115279. The reversal of 2688115278 is 8725118862.

It is an interprime number because it is at equal distance from previous prime (2688115277) and next prime (2688115279).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688115277) 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, 155668 + ... + 172071.

It is an arithmetic number, because the mean of its divisors is an integer number (336261240).

Almost surely, 2^2688115278 is an apocalyptic number.

2688115278 is an abundant number, since it is smaller than the sum of its proper divisors (2692064562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2688115278 is a wasteful number, since it uses less digits than its factorization.

2688115278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329111.

The product of its digits is 430080, while the sum is 48.

The square root of 2688115278 is about 51847.0373116922. The cubic root of 2688115278 is about 1390.4305341288.

The spelling of 2688115278 in words is "two billion, six hundred eighty-eight million, one hundred fifteen thousand, two hundred seventy-eight".