77626908918 has 36 divisors (see below), whose sum is σ = 182124678060. Its totient is φ = 23885201808.

The previous prime is 77626908907. The next prime is 77626908941. The reversal of 77626908918 is 81980962677.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 12756148 + ... + 12762231.

It is an arithmetic number, because the mean of its divisors is an integer number (5059018835).

Almost surely, 2^77626908918 is an apocalyptic number.

77626908918 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

77626908918 is an abundant number, since it is smaller than the sum of its proper divisors (104497769142).

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

77626908918 is a wasteful number, since it uses less digits than its factorization.

77626908918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25518413 (or 25518397 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The spelling of 77626908918 in words is "seventy-seven billion, six hundred twenty-six million, nine hundred eight thousand, nine hundred eighteen".