77550612396 has 12 divisors (see below), whose sum is σ = 180951428952. Its totient is φ = 25850204128.

The previous prime is 77550612379. The next prime is 77550612431. The reversal of 77550612396 is 69321605577.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 3231275505 + ... + 3231275528.

It is an arithmetic number, because the mean of its divisors is an integer number (15079285746).

Almost surely, 2^77550612396 is an apocalyptic number.

It is an amenable number.

77550612396 is an abundant number, since it is smaller than the sum of its proper divisors (103400816556).

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

77550612396 is a wasteful number, since it uses less digits than its factorization.

77550612396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6462551040 (or 6462551038 counting only the distinct ones).

The product of its (nonzero) digits is 2381400, while the sum is 51.

The spelling of 77550612396 in words is "seventy-seven billion, five hundred fifty million, six hundred twelve thousand, three hundred ninety-six".