78081927012 has 36 divisors (see below), whose sum is σ = 201573206016. Its totient is φ = 25473535920.

The previous prime is 78081926999. The next prime is 78081927029. The reversal of 78081927012 is 21072918087.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 23072164 + ... + 23075547.

Almost surely, 2^78081927012 is an apocalyptic number.

It is an amenable number.

78081927012 is an abundant number, since it is smaller than the sum of its proper divisors (123491279004).

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

78081927012 is a wasteful number, since it uses less digits than its factorization.

78081927012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46147768 (or 46147763 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The spelling of 78081927012 in words is "seventy-eight billion, eighty-one million, nine hundred twenty-seven thousand, twelve".