77860852068120 has 64 divisors (see below), whose sum is σ = 254817334045440. Its totient is φ = 18875358076800.

The previous prime is 77860852068017. The next prime is 77860852068121. The reversal of 77860852068120 is 2186025806877.

It is a super-2 number, since 2×77860852068120² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77860852068121) 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 15 ways as a sum of consecutive naturals, for example, 29492745676 + ... + 29492748315.

It is an arithmetic number, because the mean of its divisors is an integer number (3981520844460).

Almost surely, 2^{77860852068120} is an apocalyptic number.

It is an amenable number.

77860852068120 is an abundant number, since it is smaller than the sum of its proper divisors (176956481977320).

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

77860852068120 is a wasteful number, since it uses less digits than its factorization.

77860852068120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58985494016 (or 58985494012 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 60.

The spelling of 77860852068120 in words is "seventy-seven trillion, eight hundred sixty billion, eight hundred fifty-two million, sixty-eight thousand, one hundred twenty".