18348322788001 has 4 divisors (see below), whose sum is σ = 18348459490372. Its totient is φ = 18348186085632.

The previous prime is 18348322787903. The next prime is 18348322788071. The reversal of 18348322788001 is 10088722384381.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 999440078400 + 17348882709601 = 999720^2 + 4165199^2 .

It is a cyclic number.

It is not a de Polignac number, because 18348322788001 - 2²¹ = 18348320690849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18348322788071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68149656 + ... + 68418361.

It is an arithmetic number, because the mean of its divisors is an integer number (4587114872593).

Almost surely, 2^{18348322788001} is an apocalyptic number.

It is an amenable number.

18348322788001 is a deficient number, since it is larger than the sum of its proper divisors (136702371).

18348322788001 is a wasteful number, since it uses less digits than its factorization.

18348322788001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136702370.

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 18348322788001 in words is "eighteen trillion, three hundred forty-eight billion, three hundred twenty-two million, seven hundred eighty-eight thousand, one".