2688120392 has 16 divisors (see below), whose sum is σ = 5163158700. Its totient is φ = 1311278080.

The previous prime is 2688120389. The next prime is 2688120401. The reversal of 2688120392 is 2930218862.

It can be written as a sum of positive squares in 2 ways, for example, as 1711807876 + 976312516 = 41374^2 + 31246^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4097417 + ... + 4098072.

Almost surely, 2^2688120392 is an apocalyptic number.

It is an amenable number.

2688120392 is a deficient number, since it is larger than the sum of its proper divisors (2475038308).

2688120392 is a wasteful number, since it uses less digits than its factorization.

2688120392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8195536 (or 8195532 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 2688120392 is about 51847.0866298194. The cubic root of 2688120392 is about 1390.4314158689.

The spelling of 2688120392 in words is "two billion, six hundred eighty-eight million, one hundred twenty thousand, three hundred ninety-two".