18240956052063 has 4 divisors (see below), whose sum is σ = 24321274736088. Its totient is φ = 12160637368040.

The previous prime is 18240956052031. The next prime is 18240956052071. The reversal of 18240956052063 is 36025065904281.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 18240956052063 - 2⁵ = 18240956052031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18240956051997 and 18240956052015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18240956054063) by changing a digit.

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, 3040159342008 + ... + 3040159342013.

It is an arithmetic number, because the mean of its divisors is an integer number (6080318684022).

Almost surely, 2^{18240956052063} is an apocalyptic number.

18240956052063 is a deficient number, since it is larger than the sum of its proper divisors (6080318684025).

18240956052063 is an equidigital number, since it uses as much as digits as its factorization.

18240956052063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6080318684024.

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 18240956052063 in words is "eighteen trillion, two hundred forty billion, nine hundred fifty-six million, fifty-two thousand, sixty-three".