2688417897 has 16 divisors (see below), whose sum is σ = 3916773120. Its totient is φ = 1626699600.

The previous prime is 2688417883. The next prime is 2688417913. The reversal of 2688417897 is 7987148862.

It is not a de Polignac number, because 2688417897 - 2⁴ = 2688417881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2688417897.

It is not an unprimeable number, because it can be changed into a prime (2688417857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45379 + ... + 86232.

It is an arithmetic number, because the mean of its divisors is an integer number (244798320).

Almost surely, 2^2688417897 is an apocalyptic number.

It is an amenable number.

2688417897 is a deficient number, since it is larger than the sum of its proper divisors (1228355223).

2688417897 is a wasteful number, since it uses less digits than its factorization.

2688417897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132244.

The product of its digits is 10838016, while the sum is 60.

The square root of 2688417897 is about 51849.9556123243. The cubic root of 2688417897 is about 1390.4827088392.

The spelling of 2688417897 in words is "two billion, six hundred eighty-eight million, four hundred seventeen thousand, eight hundred ninety-seven".