18378187206 has 16 divisors (see below), whose sum is σ = 37113233664. Its totient is φ = 6066585864.

The previous prime is 18378187183. The next prime is 18378187271. The reversal of 18378187206 is 60278187381.

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, 14868466 + ... + 14869701.

It is an arithmetic number, because the mean of its divisors is an integer number (2319577104).

Almost surely, 2^18378187206 is an apocalyptic number.

18378187206 is an abundant number, since it is smaller than the sum of its proper divisors (18735046458).

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

18378187206 is a wasteful number, since it uses less digits than its factorization.

18378187206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29738275.

The product of its (nonzero) digits is 903168, while the sum is 51.

The spelling of 18378187206 in words is "eighteen billion, three hundred seventy-eight million, one hundred eighty-seven thousand, two hundred six".