8525381211317 has 4 divisors (see below), whose sum is σ = 8527563293856. Its totient is φ = 8523199128780.

The previous prime is 8525381211271. The next prime is 8525381211349. The reversal of 8525381211317 is 7131121835258.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8525381211317 - 2²⁶ = 8525314102453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8525381211617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091035409 + ... + 1091043222.

It is an arithmetic number, because the mean of its divisors is an integer number (2131890823464).

Almost surely, 2^{8525381211317} is an apocalyptic number.

It is an amenable number.

8525381211317 is a deficient number, since it is larger than the sum of its proper divisors (2182082539).

8525381211317 is a wasteful number, since it uses less digits than its factorization.

8525381211317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182082538.

The product of its digits is 403200, while the sum is 47.

The spelling of 8525381211317 in words is "eight trillion, five hundred twenty-five billion, three hundred eighty-one million, two hundred eleven thousand, three hundred seventeen".