19412688469 has 2 divisors, whose sum is σ = 19412688470. Its totient is φ = 19412688468.

The previous prime is 19412688461. The next prime is 19412688499. The reversal of 19412688469 is 96488621491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17599206244 + 1813482225 = 132662^2 + 42585^2 .

It is a cyclic number.

It is not a de Polignac number, because 19412688469 - 2³ = 19412688461 is a prime.

It is a super-2 number, since 2×19412688469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19412688461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9706344234 + 9706344235.

It is an arithmetic number, because the mean of its divisors is an integer number (9706344235).

Almost surely, 2^19412688469 is an apocalyptic number.

It is an amenable number.

19412688469 is a deficient number, since it is larger than the sum of its proper divisors (1).

19412688469 is an equidigital number, since it uses as much as digits as its factorization.

19412688469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5971968, while the sum is 58.

The spelling of 19412688469 in words is "nineteen billion, four hundred twelve million, six hundred eighty-eight thousand, four hundred sixty-nine".