18800269793 has 2 divisors, whose sum is σ = 18800269794. Its totient is φ = 18800269792.

The previous prime is 18800269781. The next prime is 18800269823. The reversal of 18800269793 is 39796200881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18510146704 + 290123089 = 136052^2 + 17033^2 .

It is a cyclic number.

It is not a de Polignac number, because 18800269793 - 2¹⁰ = 18800268769 is a prime.

It is not a weakly prime, because it can be changed into another prime (18800269193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9400134896 + 9400134897.

It is an arithmetic number, because the mean of its divisors is an integer number (9400134897).

Almost surely, 2^18800269793 is an apocalyptic number.

It is an amenable number.

18800269793 is a deficient number, since it is larger than the sum of its proper divisors (1).

18800269793 is an equidigital number, since it uses as much as digits as its factorization.

18800269793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 18800269793 in words is "eighteen billion, eight hundred million, two hundred sixty-nine thousand, seven hundred ninety-three".