780536682 has 128 divisors (see below), whose sum is σ = 1942560000. Its totient is φ = 231227136.

The previous prime is 780536641. The next prime is 780536699. The reversal of 780536682 is 286635087.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1100544 + ... + 1101252.

It is an arithmetic number, because the mean of its divisors is an integer number (15176250).

Almost surely, 2^780536682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 780536682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (971280000).

780536682 is an abundant number, since it is smaller than the sum of its proper divisors (1162023318).

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

780536682 is a wasteful number, since it uses less digits than its factorization.

780536682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 780536682 is about 27938.0865844460. The cubic root of 780536682 is about 920.7274814675.

The spelling of 780536682 in words is "seven hundred eighty million, five hundred thirty-six thousand, six hundred eighty-two".