18027720692 has 24 divisors (see below), whose sum is σ = 32098096800. Its totient is φ = 8856977696.

The previous prime is 18027720677. The next prime is 18027720713. The reversal of 18027720692 is 29602772081.

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 7 ways as a sum of consecutive naturals, for example, 528383 + ... + 561465.

It is an arithmetic number, because the mean of its divisors is an integer number (1337420700).

Almost surely, 2^18027720692 is an apocalyptic number.

It is an amenable number.

18027720692 is a deficient number, since it is larger than the sum of its proper divisors (14070376108).

18027720692 is a wasteful number, since it uses less digits than its factorization.

18027720692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35455 (or 35453 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 18027720692 in words is "eighteen billion, twenty-seven million, seven hundred twenty thousand, six hundred ninety-two".