129424850859 has 16 divisors (see below), whose sum is σ = 178147307520. Its totient is φ = 83493257280.

The previous prime is 129424850851. The next prime is 129424850881. The reversal of 129424850859 is 958058424921.

It is not a de Polignac number, because 129424850859 - 2³ = 129424850851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129424850799 and 129424850808.

It is not an unprimeable number, because it can be changed into a prime (129424850851) 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, 1295407 + ... + 1391735.

It is an arithmetic number, because the mean of its divisors is an integer number (11134206720).

Almost surely, 2^129424850859 is an apocalyptic number.

129424850859 is a deficient number, since it is larger than the sum of its proper divisors (48722456661).

129424850859 is a wasteful number, since it uses less digits than its factorization.

129424850859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110810.

The product of its (nonzero) digits is 8294400, while the sum is 57.

The spelling of 129424850859 in words is "one hundred twenty-nine billion, four hundred twenty-four million, eight hundred fifty thousand, eight hundred fifty-nine".