504413817389 has 4 divisors (see below), whose sum is σ = 504416901756. Its totient is φ = 504410733024.

The previous prime is 504413817379. The next prime is 504413817421. The reversal of 504413817389 is 983718314405.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 479680908100 + 24732909289 = 692590^2 + 157267^2 .

It is a cyclic number.

It is not a de Polignac number, because 504413817389 - 2²⁸ = 504145381933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 504413817389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504413817319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1282274 + ... + 1628819.

It is an arithmetic number, because the mean of its divisors is an integer number (126104225439).

Almost surely, 2^504413817389 is an apocalyptic number.

It is an amenable number.

504413817389 is a deficient number, since it is larger than the sum of its proper divisors (3084367).

504413817389 is a wasteful number, since it uses less digits than its factorization.

504413817389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084366.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 504413817389 in words is "five hundred four billion, four hundred thirteen million, eight hundred seventeen thousand, three hundred eighty-nine".