2688762064 has 20 divisors (see below), whose sum is σ = 5220188704. Its totient is φ = 1341616608.

The previous prime is 2688762053. The next prime is 2688762071. The reversal of 2688762064 is 4602678862.

It is a junction number, because it is equal to n+sod(n) for n = 2688761999 and 2688762017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164742 + ... + 180325.

Almost surely, 2^2688762064 is an apocalyptic number.

It is an amenable number.

2688762064 is a deficient number, since it is larger than the sum of its proper divisors (2531426640).

2688762064 is a wasteful number, since it uses less digits than its factorization.

2688762064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345562 (or 345556 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

The square root of 2688762064 is about 51853.2743806985. The cubic root of 2688762064 is about 1390.5420421052.

The spelling of 2688762064 in words is "two billion, six hundred eighty-eight million, seven hundred sixty-two thousand, sixty-four".