129309476632 has 32 divisors (see below), whose sum is σ = 291675513600. Its totient is φ = 52501591584.

The previous prime is 129309476629. The next prime is 129309476687. The reversal of 129309476632 is 236674903921.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 129309476632.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60764668 + ... + 60766795.

It is an arithmetic number, because the mean of its divisors is an integer number (9114859800).

Almost surely, 2^129309476632 is an apocalyptic number.

It is an amenable number.

129309476632 is an abundant number, since it is smaller than the sum of its proper divisors (162366036968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129309476632 is a wasteful number, since it uses less digits than its factorization.

129309476632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121531495 (or 121531491 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 52.

The spelling of 129309476632 in words is "one hundred twenty-nine billion, three hundred nine million, four hundred seventy-six thousand, six hundred thirty-two".