77054544112 has 120 divisors (see below), whose sum is σ = 184945246080. Its totient is φ = 30451749120.

The previous prime is 77054544109. The next prime is 77054544113. The reversal of 77054544112 is 21144545077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77054544113) 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 23 ways as a sum of consecutive naturals, for example, 28977439 + ... + 28980097.

It is an arithmetic number, because the mean of its divisors is an integer number (1541210384).

Almost surely, 2^77054544112 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 77054544112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92472623040).

77054544112 is an abundant number, since it is smaller than the sum of its proper divisors (107890701968).

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

77054544112 is a wasteful number, since it uses less digits than its factorization.

77054544112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4231 (or 4212 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 40.

The spelling of 77054544112 in words is "seventy-seven billion, fifty-four million, five hundred forty-four thousand, one hundred twelve".