18027886821272 has 16 divisors (see below), whose sum is σ = 35581355568600. Its totient is φ = 8539525336320.

The previous prime is 18027886821247. The next prime is 18027886821293. The reversal of 18027886821272 is 27212868872081.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59302259129 + ... + 59302259432.

Almost surely, 2^{18027886821272} is an apocalyptic number.

It is an amenable number.

18027886821272 is a deficient number, since it is larger than the sum of its proper divisors (17553468747328).

18027886821272 is a wasteful number, since it uses less digits than its factorization.

18027886821272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118604518586 (or 118604518582 counting only the distinct ones).

The product of its (nonzero) digits is 19267584, while the sum is 62.

The spelling of 18027886821272 in words is "eighteen trillion, twenty-seven billion, eight hundred eighty-six million, eight hundred twenty-one thousand, two hundred seventy-two".