77701811120 has 20 divisors (see below), whose sum is σ = 180656711040. Its totient is φ = 31080724416.

The previous prime is 77701811069. The next prime is 77701811123. The reversal of 77701811120 is 2111810777.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (77701811123) 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 3 ways as a sum of consecutive naturals, for example, 485636240 + ... + 485636399.

It is an arithmetic number, because the mean of its divisors is an integer number (9032835552).

Almost surely, 2^77701811120 is an apocalyptic number.

It is an amenable number.

77701811120 is an abundant number, since it is smaller than the sum of its proper divisors (102954899920).

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

77701811120 is a wasteful number, since it uses less digits than its factorization.

77701811120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971272652 (or 971272646 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 35.

The spelling of 77701811120 in words is "seventy-seven billion, seven hundred one million, eight hundred eleven thousand, one hundred twenty".