77833257828 has 24 divisors (see below), whose sum is σ = 184168837440. Its totient is φ = 25579004640.

The previous prime is 77833257823. The next prime is 77833257841. The reversal of 77833257828 is 82875233877.

It is not an unprimeable number, because it can be changed into a prime (77833257823) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45675943 + ... + 45677646.

It is an arithmetic number, because the mean of its divisors is an integer number (7673701560).

Almost surely, 2^77833257828 is an apocalyptic number.

It is an amenable number.

77833257828 is an abundant number, since it is smaller than the sum of its proper divisors (106335579612).

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

77833257828 is a wasteful number, since it uses less digits than its factorization.

77833257828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91353667 (or 91353665 counting only the distinct ones).

The product of its digits is 31610880, while the sum is 60.

The spelling of 77833257828 in words is "seventy-seven billion, eight hundred thirty-three million, two hundred fifty-seven thousand, eight hundred twenty-eight".