52005819198869 has 2 divisors, whose sum is σ = 52005819198870. Its totient is φ = 52005819198868.

The previous prime is 52005819198821. The next prime is 52005819198919. The reversal of 52005819198869 is 96889191850025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51932561280625 + 73257918244 = 7206425^2 + 270662^2 .

It is a cyclic number.

It is not a de Polignac number, because 52005819198869 - 2¹² = 52005819194773 is a prime.

It is a super-2 number, since 2×52005819198869² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52005819198269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26002909599434 + 26002909599435.

It is an arithmetic number, because the mean of its divisors is an integer number (26002909599435).

Almost surely, 2^{52005819198869} is an apocalyptic number.

It is an amenable number.

52005819198869 is a deficient number, since it is larger than the sum of its proper divisors (1).

52005819198869 is an equidigital number, since it uses as much as digits as its factorization.

52005819198869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 111974400, while the sum is 71.

The spelling of 52005819198869 in words is "fifty-two trillion, five billion, eight hundred nineteen million, one hundred ninety-eight thousand, eight hundred sixty-nine".