129773853865 has 16 divisors (see below), whose sum is σ = 163944141120. Its totient is φ = 98343357120.

The previous prime is 129773853799. The next prime is 129773853871. The reversal of 129773853865 is 568358377921.

It is not a de Polignac number, because 129773853865 - 2⁹ = 129773853353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129773853797 and 129773853806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 780247 + ... + 931843.

It is an arithmetic number, because the mean of its divisors is an integer number (10246508820).

Almost surely, 2^129773853865 is an apocalyptic number.

It is an amenable number.

129773853865 is a deficient number, since it is larger than the sum of its proper divisors (34170287255).

129773853865 is a wasteful number, since it uses less digits than its factorization.

129773853865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160632.

The product of its digits is 76204800, while the sum is 64.

The spelling of 129773853865 in words is "one hundred twenty-nine billion, seven hundred seventy-three million, eight hundred fifty-three thousand, eight hundred sixty-five".