129400064547 has 64 divisors (see below), whose sum is σ = 199167897600. Its totient is φ = 74061025920.

The previous prime is 129400064533. The next prime is 129400064569. The reversal of 129400064547 is 745460004921.

It is not a de Polignac number, because 129400064547 - 2⁴ = 129400064531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129400064499 and 129400064508.

It is not an unprimeable number, because it can be changed into a prime (129400064527) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42974272 + ... + 42977282.

It is an arithmetic number, because the mean of its divisors is an integer number (3111998400).

Almost surely, 2^129400064547 is an apocalyptic number.

129400064547 is a deficient number, since it is larger than the sum of its proper divisors (69767833053).

129400064547 is a wasteful number, since it uses less digits than its factorization.

129400064547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 129400064547 in words is "one hundred twenty-nine billion, four hundred million, sixty-four thousand, five hundred forty-seven".