5226878866 has 12 divisors (see below), whose sum is σ = 8617870926. Its totient is φ = 2375853920.

The previous prime is 5226878857. The next prime is 5226878873. The reversal of 5226878866 is 6688786225.

It can be written as a sum of positive squares in only one way, i.e., 3645623641 + 1581255225 = 60379^2 + 39765^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5226878866.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10799095 + ... + 10799578.

Almost surely, 2^5226878866 is an apocalyptic number.

5226878866 is a deficient number, since it is larger than the sum of its proper divisors (3390992060).

5226878866 is a wasteful number, since it uses less digits than its factorization.

5226878866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21598697 (or 21598686 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 58.

The square root of 5226878866 is about 72297.1566937456. The cubic root of 5226878866 is about 1735.4581494041.

The spelling of 5226878866 in words is "five billion, two hundred twenty-six million, eight hundred seventy-eight thousand, eight hundred sixty-six".