868258756 has 6 divisors (see below), whose sum is σ = 1519452830. Its totient is φ = 434129376.

The previous prime is 868258747. The next prime is 868258837. The reversal of 868258756 is 657852868.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 845064900 + 23193856 = 29070^2 + 4816^2 .

It is a junction number, because it is equal to n+sod(n) for n = 868258697 and 868258706.

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 as a sum of consecutive naturals, namely, 108532341 + ... + 108532348.

Almost surely, 2^868258756 is an apocalyptic number.

It is an amenable number.

868258756 is a deficient number, since it is larger than the sum of its proper divisors (651194074).

868258756 is a wasteful number, since it uses less digits than its factorization.

868258756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217064693 (or 217064691 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 55.

The square root of 868258756 is about 29466.2307735482. The cubic root of 868258756 is about 954.0029637156.

The spelling of 868258756 in words is "eight hundred sixty-eight million, two hundred fifty-eight thousand, seven hundred fifty-six".