129732769876 has 24 divisors (see below), whose sum is σ = 237226639104. Its totient is φ = 61961428320.

The previous prime is 129732769847. The next prime is 129732769877. The reversal of 129732769876 is 678967237921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129732769877) by changing a digit.

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, 894460 + ... + 1029331.

It is an arithmetic number, because the mean of its divisors is an integer number (9884443296).

Almost surely, 2^129732769876 is an apocalyptic number.

It is an amenable number.

129732769876 is a deficient number, since it is larger than the sum of its proper divisors (107493869228).

129732769876 is a wasteful number, since it uses less digits than its factorization.

129732769876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924551 (or 1924549 counting only the distinct ones).

The product of its digits is 96018048, while the sum is 67.

The spelling of 129732769876 in words is "one hundred twenty-nine billion, seven hundred thirty-two million, seven hundred sixty-nine thousand, eight hundred seventy-six".