869345017859 has 16 divisors (see below), whose sum is σ = 922374151776. Its totient is φ = 816526656000.

The previous prime is 869345017837. The next prime is 869345017921. The reversal of 869345017859 is 958710543968.

It is a cyclic number.

It is not a de Polignac number, because 869345017859 - 2¹² = 869345013763 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 869345017795 and 869345017804.

It is not an unprimeable number, because it can be changed into a prime (869345017819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87798809 + ... + 87808709.

It is an arithmetic number, because the mean of its divisors is an integer number (57648384486).

Almost surely, 2^869345017859 is an apocalyptic number.

869345017859 is a deficient number, since it is larger than the sum of its proper divisors (53029133917).

869345017859 is a wasteful number, since it uses less digits than its factorization.

869345017859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20006.

The product of its (nonzero) digits is 65318400, while the sum is 65.

The spelling of 869345017859 in words is "eight hundred sixty-nine billion, three hundred forty-five million, seventeen thousand, eight hundred fifty-nine".