77318777108 has 12 divisors (see below), whose sum is σ = 138186750912. Its totient is φ = 37836848280.

The previous prime is 77318777093. The next prime is 77318777119. The reversal of 77318777108 is 80177781377.

It is a congruent number.

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, 205634858 + ... + 205635233.

It is an arithmetic number, because the mean of its divisors is an integer number (11515562576).

Almost surely, 2^77318777108 is an apocalyptic number.

It is an amenable number.

77318777108 is a deficient number, since it is larger than the sum of its proper divisors (60867973804).

77318777108 is a wasteful number, since it uses less digits than its factorization.

77318777108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411270142 (or 411270140 counting only the distinct ones).

The product of its (nonzero) digits is 3226944, while the sum is 56.

The spelling of 77318777108 in words is "seventy-seven billion, three hundred eighteen million, seven hundred seventy-seven thousand, one hundred eight".