868034780 has 36 divisors (see below), whose sum is σ = 1868490120. Its totient is φ = 338732160.

The previous prime is 868034777. The next prime is 868034803. The reversal of 868034780 is 87430868.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20711 + ... + 46529.

Almost surely, 2^868034780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 868034780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (934245060).

868034780 is an abundant number, since it is smaller than the sum of its proper divisors (1000455340).

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

868034780 is a wasteful number, since it uses less digits than its factorization.

868034780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25910 (or 25867 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 868034780 is about 29462.4299744607. The cubic root of 868034780 is about 953.9209251366.

The spelling of 868034780 in words is "eight hundred sixty-eight million, thirty-four thousand, seven hundred eighty".