129477742322 has 8 divisors (see below), whose sum is σ = 194350838016. Its totient is φ = 64694129652.

The previous prime is 129477742321. The next prime is 129477742327. The reversal of 129477742322 is 223247774921.

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

It is not an unprimeable number, because it can be changed into a prime (129477742321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22367138 + ... + 22372925.

It is an arithmetic number, because the mean of its divisors is an integer number (24293854752).

Almost surely, 2^129477742322 is an apocalyptic number.

129477742322 is a deficient number, since it is larger than the sum of its proper divisors (64873095694).

129477742322 is a wasteful number, since it uses less digits than its factorization.

129477742322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44741512.

The product of its digits is 2370816, while the sum is 50.

The spelling of 129477742322 in words is "one hundred twenty-nine billion, four hundred seventy-seven million, seven hundred forty-two thousand, three hundred twenty-two".