12869297085 has 16 divisors (see below), whose sum is σ = 21300906240. Its totient is φ = 6626948160.

The previous prime is 12869297081. The next prime is 12869297107. The reversal of 12869297085 is 58079296821.

It is a happy number.

It is not a de Polignac number, because 12869297085 - 2² = 12869297081 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12869297081) 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, 14791861 + ... + 14792730.

It is an arithmetic number, because the mean of its divisors is an integer number (1331306640).

Almost surely, 2^12869297085 is an apocalyptic number.

12869297085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12869297085 is a deficient number, since it is larger than the sum of its proper divisors (8431609155).

12869297085 is a wasteful number, since it uses less digits than its factorization.

12869297085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29584628.

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 12869297085 in words is "twelve billion, eight hundred sixty-nine million, two hundred ninety-seven thousand, eighty-five".