770724864 has 264 divisors, whose sum is σ = 2741997440. Its totient is φ = 203046912.

The previous prime is 770724859. The next prime is 770724893. The reversal of 770724864 is 468427077.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 838197 + ... + 839115.

Almost surely, 2^770724864 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 770724864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1370998720).

770724864 is an abundant number, since it is smaller than the sum of its proper divisors (1971272576).

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

770724864 is a wasteful number, since it uses less digits than its factorization.

770724864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965 (or 944 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The square root of 770724864 is about 27761.9319212478. The cubic root of 770724864 is about 916.8531679737.

The spelling of 770724864 in words is "seven hundred seventy million, seven hundred twenty-four thousand, eight hundred sixty-four".