77800217658308 has 12 divisors (see below), whose sum is σ = 139047197517312. Its totient is φ = 38072446939080.

The previous prime is 77800217658301. The next prime is 77800217658323. The reversal of 77800217658308 is 80385671200877.

It is not an unprimeable number, because it can be changed into a prime (77800217658301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206915472308 + ... + 206915472683.

It is an arithmetic number, because the mean of its divisors is an integer number (11587266459776).

Almost surely, 2^{77800217658308} is an apocalyptic number.

It is an amenable number.

77800217658308 is a deficient number, since it is larger than the sum of its proper divisors (61246979859004).

77800217658308 is a wasteful number, since it uses less digits than its factorization.

77800217658308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413830945042 (or 413830945040 counting only the distinct ones).

The product of its (nonzero) digits is 31610880, while the sum is 62.

The spelling of 77800217658308 in words is "seventy-seven trillion, eight hundred billion, two hundred seventeen million, six hundred fifty-eight thousand, three hundred eight".