2688676893 has 18 divisors (see below), whose sum is σ = 4517709534. Its totient is φ = 1536386544.

The previous prime is 2688676889. The next prime is 2688676901. The reversal of 2688676893 is 3986768862.

It can be written as a sum of positive squares in only one way, i.e., 2296518084 + 392158809 = 47922^2 + 19803^2 .

It is not a de Polignac number, because 2688676893 - 2² = 2688676889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 2688676893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688676813) 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 17 ways as a sum of consecutive naturals, for example, 3047946 + ... + 3048827.

It is an arithmetic number, because the mean of its divisors is an integer number (250983863).

Almost surely, 2^2688676893 is an apocalyptic number.

It is an amenable number.

2688676893 is a deficient number, since it is larger than the sum of its proper divisors (1829032641).

2688676893 is a wasteful number, since it uses less digits than its factorization.

2688676893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6096793 (or 6096783 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The square root of 2688676893 is about 51852.4531049400. The cubic root of 2688676893 is about 1390.5273593747.

The spelling of 2688676893 in words is "two billion, six hundred eighty-eight million, six hundred seventy-six thousand, eight hundred ninety-three".