129717264851 has 16 divisors (see below), whose sum is σ = 133701784608. Its totient is φ = 125758656000.

The previous prime is 129717264739. The next prime is 129717264877. The reversal of 129717264851 is 158462717921.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 129717264851 - 2¹⁰ = 129717263827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129717264793 and 129717264802.

It is not an unprimeable number, because it can be changed into a prime (129717260851) 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, 15144296 + ... + 15152858.

It is an arithmetic number, because the mean of its divisors is an integer number (8356361538).

Almost surely, 2^129717264851 is an apocalyptic number.

129717264851 is a deficient number, since it is larger than the sum of its proper divisors (3984519757).

129717264851 is a wasteful number, since it uses less digits than its factorization.

129717264851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10022.

The product of its digits is 1693440, while the sum is 53.

The spelling of 129717264851 in words is "one hundred twenty-nine billion, seven hundred seventeen million, two hundred sixty-four thousand, eight hundred fifty-one".