18775274366 has 8 divisors (see below), whose sum is σ = 29134046520. Its totient is φ = 9063925528.

The previous prime is 18775274321. The next prime is 18775274387. The reversal of 18775274366 is 66347257781.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161855756 + ... + 161855871.

It is an arithmetic number, because the mean of its divisors is an integer number (3641755815).

Almost surely, 2^18775274366 is an apocalyptic number.

18775274366 is a deficient number, since it is larger than the sum of its proper divisors (10358772154).

18775274366 is a wasteful number, since it uses less digits than its factorization.

18775274366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323711658.

The product of its digits is 11854080, while the sum is 56.

The spelling of 18775274366 in words is "eighteen billion, seven hundred seventy-five million, two hundred seventy-four thousand, three hundred sixty-six".