2578288968 has 40 divisors (see below), whose sum is σ = 7221598230. Its totient is φ = 859429440.

The previous prime is 2578288957. The next prime is 2578288981. The reversal of 2578288968 is 8698828752.

It can be written as a sum of positive squares in only one way, i.e., 1790813124 + 787475844 = 42318^2 + 28062^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1988773 + ... + 1990068.

Almost surely, 2^2578288968 is an apocalyptic number.

It is an amenable number.

2578288968 is an abundant number, since it is smaller than the sum of its proper divisors (4643309262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2578288968 is a wasteful number, since it uses less digits than its factorization.

2578288968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3978859 (or 3978846 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The square root of 2578288968 is about 50776.8546485503. The cubic root of 2578288968 is about 1371.2307068337.

The spelling of 2578288968 in words is "two billion, five hundred seventy-eight million, two hundred eighty-eight thousand, nine hundred sixty-eight".