12864850507519 has 8 divisors (see below), whose sum is σ = 13633956037440. Its totient is φ = 12097117157376.

The previous prime is 12864850507513. The next prime is 12864850507529. The reversal of 12864850507519 is 91570505846821.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12864850507519 - 2⁹ = 12864850507007 is a prime.

It is a super-2 number, since 2×12864850507519² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12864850507513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343025634 + ... + 343063135.

It is an arithmetic number, because the mean of its divisors is an integer number (1704244504680).

Almost surely, 2^{12864850507519} is an apocalyptic number.

12864850507519 is a deficient number, since it is larger than the sum of its proper divisors (769105529921).

12864850507519 is a wasteful number, since it uses less digits than its factorization.

12864850507519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686089889.

The product of its (nonzero) digits is 24192000, while the sum is 61.

The spelling of 12864850507519 in words is "twelve trillion, eight hundred sixty-four billion, eight hundred fifty million, five hundred seven thousand, five hundred nineteen".