18803017867969 has 2 divisors, whose sum is σ = 18803017867970. Its totient is φ = 18803017867968.

The previous prime is 18803017867951. The next prime is 18803017868059. The reversal of 18803017867969 is 96976871030881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18240697853569 + 562320014400 = 4270913^2 + 749880^2 .

It is a cyclic number.

It is not a de Polignac number, because 18803017867969 - 2¹⁹ = 18803017343681 is a prime.

It is a super-2 number, since 2×18803017867969² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18803017867939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9401508933984 + 9401508933985.

It is an arithmetic number, because the mean of its divisors is an integer number (9401508933985).

Almost surely, 2^{18803017867969} is an apocalyptic number.

It is an amenable number.

18803017867969 is a deficient number, since it is larger than the sum of its proper divisors (1).

18803017867969 is an equidigital number, since it uses as much as digits as its factorization.

18803017867969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 219469824, while the sum is 73.

The spelling of 18803017867969 in words is "eighteen trillion, eight hundred three billion, seventeen million, eight hundred sixty-seven thousand, nine hundred sixty-nine".