93978675636 has 12 divisors (see below), whose sum is σ = 219283576512. Its totient is φ = 31326225208.

The previous prime is 93978675619. The next prime is 93978675727. The reversal of 93978675636 is 63657687939.

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

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 3 ways as a sum of consecutive naturals, for example, 3915778140 + ... + 3915778163.

It is an arithmetic number, because the mean of its divisors is an integer number (18273631376).

Almost surely, 2^93978675636 is an apocalyptic number.

It is an amenable number.

93978675636 is an abundant number, since it is smaller than the sum of its proper divisors (125304900876).

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

93978675636 is a wasteful number, since it uses less digits than its factorization.

93978675636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7831556310 (or 7831556308 counting only the distinct ones).

The product of its digits is 308629440, while the sum is 69.

The spelling of 93978675636 in words is "ninety-three billion, nine hundred seventy-eight million, six hundred seventy-five thousand, six hundred thirty-six".