2688506306 has 32 divisors (see below), whose sum is σ = 4255130880. Its totient is φ = 1272196800.

The previous prime is 2688506299. The next prime is 2688506311. The reversal of 2688506306 is 6036058862.

It is a super-3 number, since 3×2688506306³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743555 + ... + 747161.

It is an arithmetic number, because the mean of its divisors is an integer number (132972840).

Almost surely, 2^2688506306 is an apocalyptic number.

2688506306 is a deficient number, since it is larger than the sum of its proper divisors (1566624574).

2688506306 is a wasteful number, since it uses less digits than its factorization.

2688506306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 2688506306 is about 51850.8081518504. The cubic root of 2688506306 is about 1390.4979507452.

The spelling of 2688506306 in words is "two billion, six hundred eighty-eight million, five hundred six thousand, three hundred six".