10185919369 has 2 divisors, whose sum is σ = 10185919370. Its totient is φ = 10185919368.

The previous prime is 10185919351. The next prime is 10185919379. The reversal of 10185919369 is 96391958101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9406672144 + 779247225 = 96988^2 + 27915^2 .

It is a cyclic number.

It is not a de Polignac number, because 10185919369 - 2⁹ = 10185918857 is a prime.

It is a super-2 number, since 2×10185919369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10185919339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5092959684 + 5092959685.

It is an arithmetic number, because the mean of its divisors is an integer number (5092959685).

Almost surely, 2^10185919369 is an apocalyptic number.

It is an amenable number.

10185919369 is a deficient number, since it is larger than the sum of its proper divisors (1).

10185919369 is an equidigital number, since it uses as much as digits as its factorization.

10185919369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 52.

The spelling of 10185919369 in words is "ten billion, one hundred eighty-five million, nine hundred nineteen thousand, three hundred sixty-nine".