999236382269 has 2 divisors, whose sum is σ = 999236382270. Its totient is φ = 999236382268.

The previous prime is 999236382253. The next prime is 999236382289. The reversal of 999236382269 is 962283632999.

It is a happy number.

999236382269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 846331921369 + 152904460900 = 919963^2 + 391030^2 .

It is a cyclic number.

It is not a de Polignac number, because 999236382269 - 2⁴ = 999236382253 is a prime.

It is a super-2 number, since 2×999236382269² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 999236382199 and 999236382208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999236382229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499618191134 + 499618191135.

It is an arithmetic number, because the mean of its divisors is an integer number (499618191135).

Almost surely, 2^999236382269 is an apocalyptic number.

It is an amenable number.

999236382269 is a deficient number, since it is larger than the sum of its proper divisors (1).

999236382269 is an equidigital number, since it uses as much as digits as its factorization.

999236382269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136048896, while the sum is 68.

The spelling of 999236382269 in words is "nine hundred ninety-nine billion, two hundred thirty-six million, three hundred eighty-two thousand, two hundred sixty-nine".