2688535972 has 6 divisors (see below), whose sum is σ = 4704937958. Its totient is φ = 1344267984.

The previous prime is 2688535963. The next prime is 2688536003. The reversal of 2688535972 is 2795358862.

2688535972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2144060416 + 544475556 = 46304^2 + 23334^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336066993 + ... + 336067000.

Almost surely, 2^2688535972 is an apocalyptic number.

It is an amenable number.

2688535972 is a deficient number, since it is larger than the sum of its proper divisors (2016401986).

2688535972 is a wasteful number, since it uses less digits than its factorization.

2688535972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672133997 (or 672133995 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 55.

The square root of 2688535972 is about 51851.0942218195. The cubic root of 2688535972 is about 1390.5030651539.

The spelling of 2688535972 in words is "two billion, six hundred eighty-eight million, five hundred thirty-five thousand, nine hundred seventy-two".