18863328733346 has 8 divisors (see below), whose sum is σ = 28296561525804. Its totient is φ = 9431141558080.

The previous prime is 18863328733309. The next prime is 18863328733369. The reversal of 18863328733346 is 64333782336881.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18810479781025 + 52848952321 = 4337105^2 + 229889^2 .

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

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, 261359195 + ... + 261431358.

Almost surely, 2^{18863328733346} is an apocalyptic number.

18863328733346 is a deficient number, since it is larger than the sum of its proper divisors (9433232792458).

18863328733346 is a wasteful number, since it uses less digits than its factorization.

18863328733346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522808596.

The product of its digits is 250822656, while the sum is 65.

The spelling of 18863328733346 in words is "eighteen trillion, eight hundred sixty-three billion, three hundred twenty-eight million, seven hundred thirty-three thousand, three hundred forty-six".