5209258210385 has 8 divisors (see below), whose sum is σ = 6266855723496. Its totient is φ = 4156909320960.

The previous prime is 5209258210339. The next prime is 5209258210399. The reversal of 5209258210385 is 5830128529025.

It can be written as a sum of positive squares in 4 ways, for example, as 1931677463104 + 3277580747281 = 1389848^2 + 1810409^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5209258210385 - 2¹⁰ = 5209258209361 is a prime.

It is a super-2 number, since 2×5209258210385² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1312153736 + ... + 1312157705.

It is an arithmetic number, because the mean of its divisors is an integer number (783356965437).

Almost surely, 2^{5209258210385} is an apocalyptic number.

It is an amenable number.

5209258210385 is a deficient number, since it is larger than the sum of its proper divisors (1057597513111).

5209258210385 is a wasteful number, since it uses less digits than its factorization.

5209258210385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624311843.

The product of its (nonzero) digits is 1728000, while the sum is 50.

The spelling of 5209258210385 in words is "five trillion, two hundred nine billion, two hundred fifty-eight million, two hundred ten thousand, three hundred eighty-five".