18200090928269 has 2 divisors, whose sum is σ = 18200090928270. Its totient is φ = 18200090928268.

The previous prime is 18200090928199. The next prime is 18200090928293. The reversal of 18200090928269 is 96282909000281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17661132325225 + 538958603044 = 4202515^2 + 734138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18200090928269 is a prime.

It is a super-2 number, since 2×18200090928269² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18200090928169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9100045464134 + 9100045464135.

It is an arithmetic number, because the mean of its divisors is an integer number (9100045464135).

Almost surely, 2^{18200090928269} is an apocalyptic number.

It is an amenable number.

18200090928269 is a deficient number, since it is larger than the sum of its proper divisors (1).

18200090928269 is an equidigital number, since it uses as much as digits as its factorization.

18200090928269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 18200090928269 in words is "eighteen trillion, two hundred billion, ninety million, nine hundred twenty-eight thousand, two hundred sixty-nine".