18072078056412 has 12 divisors (see below), whose sum is σ = 42168182131656. Its totient is φ = 6024026018800.

The previous prime is 18072078056401. The next prime is 18072078056437. The reversal of 18072078056412 is 21465087027081.

It is a happy number.

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 (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753003252339 + ... + 753003252362.

It is an arithmetic number, because the mean of its divisors is an integer number (3514015177638).

Almost surely, 2^{18072078056412} is an apocalyptic number.

18072078056412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18072078056412 is an abundant number, since it is smaller than the sum of its proper divisors (24096104075244).

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

18072078056412 is a wasteful number, since it uses less digits than its factorization.

18072078056412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506006504708 (or 1506006504706 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 51.

The spelling of 18072078056412 in words is "eighteen trillion, seventy-two billion, seventy-eight million, fifty-six thousand, four hundred twelve".