2688260478 has 32 divisors (see below), whose sum is σ = 5454763776. Its totient is φ = 883067328.

The previous prime is 2688260459. The next prime is 2688260479. The reversal of 2688260478 is 8740628862.

It is a self number, because there is not a number n which added to its sum of digits gives 2688260478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688260479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 807325 + ... + 810647.

It is an arithmetic number, because the mean of its divisors is an integer number (170461368).

Almost surely, 2^2688260478 is an apocalyptic number.

2688260478 is an abundant number, since it is smaller than the sum of its proper divisors (2766503298).

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

2688260478 is a wasteful number, since it uses less digits than its factorization.

2688260478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5248.

The product of its (nonzero) digits is 2064384, while the sum is 51.

The square root of 2688260478 is about 51848.4375656586. The cubic root of 2688260478 is about 1390.4555686303.

The spelling of 2688260478 in words is "two billion, six hundred eighty-eight million, two hundred sixty thousand, four hundred seventy-eight".