129732769855 has 16 divisors (see below), whose sum is σ = 168251315904. Its totient is φ = 95461712640.

The previous prime is 129732769847. The next prime is 129732769877. The reversal of 129732769855 is 558967237921.

It is not a de Polignac number, because 129732769855 - 2³ = 129732769847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3533139 + ... + 3569668.

It is an arithmetic number, because the mean of its divisors is an integer number (10515707244).

Almost surely, 2^129732769855 is an apocalyptic number.

129732769855 is a deficient number, since it is larger than the sum of its proper divisors (38518546049).

129732769855 is a wasteful number, since it uses less digits than its factorization.

129732769855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7103106.

The product of its digits is 57153600, while the sum is 64.

The spelling of 129732769855 in words is "one hundred twenty-nine billion, seven hundred thirty-two million, seven hundred sixty-nine thousand, eight hundred fifty-five".