775682828928 has 512 divisors, whose sum is σ = 2673764352000. Its totient is φ = 216801349632.

The previous prime is 775682828923. The next prime is 775682828983. The reversal of 775682828928 is 829828286577.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (775682828923) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 318292926 + ... + 318295362.

It is an arithmetic number, because the mean of its divisors is an integer number (5222196000).

Almost surely, 2^775682828928 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 775682828928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1336882176000).

775682828928 is an abundant number, since it is smaller than the sum of its proper divisors (1898081523072).

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

775682828928 is a wasteful number, since it uses less digits than its factorization.

775682828928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749 (or 2731 counting only the distinct ones).

The product of its digits is 433520640, while the sum is 72.

The spelling of 775682828928 in words is "seven hundred seventy-five billion, six hundred eighty-two million, eight hundred twenty-eight thousand, nine hundred twenty-eight".