18479097293 has 2 divisors, whose sum is σ = 18479097294. Its totient is φ = 18479097292.

The previous prime is 18479097283. The next prime is 18479097317. The reversal of 18479097293 is 39279097481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14869851364 + 3609245929 = 121942^2 + 60077^2 .

It is a cyclic number.

It is not a de Polignac number, because 18479097293 - 2⁴ = 18479097277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18479097283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9239548646 + 9239548647.

It is an arithmetic number, because the mean of its divisors is an integer number (9239548647).

Almost surely, 2^18479097293 is an apocalyptic number.

It is an amenable number.

18479097293 is a deficient number, since it is larger than the sum of its proper divisors (1).

18479097293 is an equidigital number, since it uses as much as digits as its factorization.

18479097293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6858432, while the sum is 59.

The spelling of 18479097293 in words is "eighteen billion, four hundred seventy-nine million, ninety-seven thousand, two hundred ninety-three".