129703072008 has 16 divisors (see below), whose sum is σ = 324257680080. Its totient is φ = 43234357328.

The previous prime is 129703071983. The next prime is 129703072039. The reversal of 129703072008 is 800270307921.

129703072008 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2702147310 + ... + 2702147357.

It is an arithmetic number, because the mean of its divisors is an integer number (20266105005).

Almost surely, 2^129703072008 is an apocalyptic number.

It is an amenable number.

129703072008 is an abundant number, since it is smaller than the sum of its proper divisors (194554608072).

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

129703072008 is a wasteful number, since it uses less digits than its factorization.

129703072008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404294676 (or 5404294672 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

Adding to 129703072008 its reverse (800270307921), we get a palindrome (929973379929).

The spelling of 129703072008 in words is "one hundred twenty-nine billion, seven hundred three million, seventy-two thousand, eight".