5209888087769 has 2 divisors, whose sum is σ = 5209888087770. Its totient is φ = 5209888087768.

The previous prime is 5209888087757. The next prime is 5209888087801. The reversal of 5209888087769 is 9677808889025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5190254473369 + 19633614400 = 2278213^2 + 140120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5209888087769 is a prime.

It is a super-2 number, since 2×5209888087769² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5209888087769.

It is not a weakly prime, because it can be changed into another prime (5209888087739) 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, 2604944043884 + 2604944043885.

It is an arithmetic number, because the mean of its divisors is an integer number (2604944043885).

Almost surely, 2^{5209888087769} is an apocalyptic number.

It is an amenable number.

5209888087769 is a deficient number, since it is larger than the sum of its proper divisors (1).

5209888087769 is an equidigital number, since it uses as much as digits as its factorization.

5209888087769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 975421440, while the sum is 77.

The spelling of 5209888087769 in words is "five trillion, two hundred nine billion, eight hundred eighty-eight million, eighty-seven thousand, seven hundred sixty-nine".