5252638338639 has 24 divisors (see below), whose sum is σ = 7626618642240. Its totient is φ = 3483567217152.

The previous prime is 5252638338601. The next prime is 5252638338683. The reversal of 5252638338639 is 9368338362525.

5252638338639 is a `hidden beast` number, since 5 + 2 + 5 + 263 + 8 + 338 + 6 + 39 = 666.

It is not a de Polignac number, because 5252638338639 - 2¹⁷ = 5252638207567 is a prime.

It is a super-3 number, since 3×5252638338639³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5252638338139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1177527 + ... + 3448455.

It is an arithmetic number, because the mean of its divisors is an integer number (317775776760).

Almost surely, 2^{5252638338639} is an apocalyptic number.

5252638338639 is a deficient number, since it is larger than the sum of its proper divisors (2373980303601).

5252638338639 is a wasteful number, since it uses less digits than its factorization.

5252638338639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272271 (or 2272268 counting only the distinct ones).

The product of its digits is 167961600, while the sum is 63.

The spelling of 5252638338639 in words is "five trillion, two hundred fifty-two billion, six hundred thirty-eight million, three hundred thirty-eight thousand, six hundred thirty-nine".