129732769865 has 8 divisors (see below), whose sum is σ = 157190774208. Its totient is φ = 102778582320.

The previous prime is 129732769847. The next prime is 129732769877. The reversal of 129732769865 is 568967237921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129732769865 - 2⁶ = 129732769801 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125953631 + ... + 125954660.

It is an arithmetic number, because the mean of its divisors is an integer number (19648846776).

Almost surely, 2^129732769865 is an apocalyptic number.

It is an amenable number.

129732769865 is a deficient number, since it is larger than the sum of its proper divisors (27458004343).

129732769865 is a wasteful number, since it uses less digits than its factorization.

129732769865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251908399.

The product of its digits is 68584320, while the sum is 65.

The spelling of 129732769865 in words is "one hundred twenty-nine billion, seven hundred thirty-two million, seven hundred sixty-nine thousand, eight hundred sixty-five".