77404440108 has 24 divisors (see below), whose sum is σ = 183084476848. Its totient is φ = 25448034816.

The previous prime is 77404440101. The next prime is 77404440109. The reversal of 77404440108 is 80104440477.

It is not an unprimeable number, because it can be changed into a prime (77404440101) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 44179741 + ... + 44181492.

Almost surely, 2^77404440108 is an apocalyptic number.

It is an amenable number.

77404440108 is an abundant number, since it is smaller than the sum of its proper divisors (105680036740).

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

77404440108 is a wasteful number, since it uses less digits than its factorization.

77404440108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88361313 (or 88361311 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 39.

The spelling of 77404440108 in words is "seventy-seven billion, four hundred four million, four hundred forty thousand, one hundred eight".