129869547264 has 180 divisors, whose sum is σ = 391245792784. Its totient is φ = 42842898432.

The previous prime is 129869547259. The next prime is 129869547271. The reversal of 129869547264 is 462745968921.

129869547264 is a `hidden beast` number, since 1 + 2 + 9 + 8 + 69 + 547 + 26 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1979109 + ... + 2043675.

Almost surely, 2^129869547264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129869547264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195622896392).

129869547264 is an abundant number, since it is smaller than the sum of its proper divisors (261376245520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129869547264 is an frugal number, since it uses more digits than its factorization.

129869547264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64692 (or 64669 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 129869547264 in words is "one hundred twenty-nine billion, eight hundred sixty-nine million, five hundred forty-seven thousand, two hundred sixty-four".