504294886391 has 2 divisors, whose sum is σ = 504294886392. Its totient is φ = 504294886390.

The previous prime is 504294886387. The next prime is 504294886397. The reversal of 504294886391 is 193688492405.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 504294886391 - 2² = 504294886387 is a prime.

It is a super-2 number, since 2×504294886391² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 504294886391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504294886397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252147443195 + 252147443196.

It is an arithmetic number, because the mean of its divisors is an integer number (252147443196).

Almost surely, 2^504294886391 is an apocalyptic number.

504294886391 is a deficient number, since it is larger than the sum of its proper divisors (1).

504294886391 is an equidigital number, since it uses as much as digits as its factorization.

504294886391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14929920, while the sum is 59.

The spelling of 504294886391 in words is "five hundred four billion, two hundred ninety-four million, eight hundred eighty-six thousand, three hundred ninety-one".