77304266508 has 72 divisors (see below), whose sum is σ = 210145320000. Its totient is φ = 22053306912.

The previous prime is 77304266443. The next prime is 77304266509. The reversal of 77304266508 is 80566240377.

It is not an unprimeable number, because it can be changed into a prime (77304266509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287743 + ... + 487241.

It is an arithmetic number, because the mean of its divisors is an integer number (2918685000).

Almost surely, 2^77304266508 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 77304266508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105072660000).

77304266508 is an abundant number, since it is smaller than the sum of its proper divisors (132841053492).

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

77304266508 is a wasteful number, since it uses less digits than its factorization.

77304266508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200179 (or 200170 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 77304266508 in words is "seventy-seven billion, three hundred four million, two hundred sixty-six thousand, five hundred eight".