77319258352 has 60 divisors (see below), whose sum is σ = 174653107200. Its totient is φ = 33062873088.

The previous prime is 77319258319. The next prime is 77319258377. The reversal of 77319258352 is 25385291377.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 77319258352.

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 11 ways as a sum of consecutive naturals, for example, 242193 + ... + 461839.

It is an arithmetic number, because the mean of its divisors is an integer number (2910885120).

Almost surely, 2^77319258352 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 77319258352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87326553600).

77319258352 is an abundant number, since it is smaller than the sum of its proper divisors (97333848848).

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

77319258352 is a wasteful number, since it uses less digits than its factorization.

77319258352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220118 (or 220105 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 52.

The spelling of 77319258352 in words is "seventy-seven billion, three hundred nineteen million, two hundred fifty-eight thousand, three hundred fifty-two".