77716342218 has 8 divisors (see below), whose sum is σ = 155432684448. Its totient is φ = 25905447404.

The previous prime is 77716342133. The next prime is 77716342229. The reversal of 77716342218 is 81224361777.

It is a sphenic number, since it is the product of 3 distinct primes.

77716342218 is an admirable number.

It is a super-3 number, since 3×77716342218³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6476361846 + ... + 6476361857.

It is an arithmetic number, because the mean of its divisors is an integer number (19429085556).

Almost surely, 2^77716342218 is an apocalyptic number.

77716342218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

77716342218 is a wasteful number, since it uses less digits than its factorization.

77716342218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12952723708.

The product of its digits is 790272, while the sum is 48.

The spelling of 77716342218 in words is "seventy-seven billion, seven hundred sixteen million, three hundred forty-two thousand, two hundred eighteen".