169849405459 has 2 divisors, whose sum is σ = 169849405460. Its totient is φ = 169849405458.

The previous prime is 169849405423. The next prime is 169849405471. The reversal of 169849405459 is 954504948961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 169849405459 - 2²⁵ = 169815851027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 169849405459.

It is not a weakly prime, because it can be changed into another prime (169849405489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84924702729 + 84924702730.

It is an arithmetic number, because the mean of its divisors is an integer number (84924702730).

Almost surely, 2^169849405459 is an apocalyptic number.

169849405459 is a deficient number, since it is larger than the sum of its proper divisors (1).

169849405459 is an equidigital number, since it uses as much as digits as its factorization.

169849405459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55987200, while the sum is 64.

The spelling of 169849405459 in words is "one hundred sixty-nine billion, eight hundred forty-nine million, four hundred five thousand, four hundred fifty-nine".