868529129559 has 16 divisors (see below), whose sum is σ = 1425278572032. Its totient is φ = 458125255008.

The previous prime is 868529129543. The next prime is 868529129563. The reversal of 868529129559 is 955921925868.

868529129559 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 868529129559 - 2⁴ = 868529129543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 868529129493 and 868529129502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868529129539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1590712419 + ... + 1590712964.

It is an arithmetic number, because the mean of its divisors is an integer number (89079910752).

Almost surely, 2^868529129559 is an apocalyptic number.

868529129559 is a deficient number, since it is larger than the sum of its proper divisors (556749442473).

868529129559 is a wasteful number, since it uses less digits than its factorization.

868529129559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181425406.

The product of its digits is 139968000, while the sum is 69.

The spelling of 868529129559 in words is "eight hundred sixty-eight billion, five hundred twenty-nine million, one hundred twenty-nine thousand, five hundred fifty-nine".