129306912434 has 16 divisors (see below), whose sum is σ = 222028276608. Its totient is φ = 55327427232.

The previous prime is 129306912407. The next prime is 129306912437. The reversal of 129306912434 is 434219603921.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (129306912437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7476134 + ... + 7493409.

It is an arithmetic number, because the mean of its divisors is an integer number (13876767288).

Almost surely, 2^129306912434 is an apocalyptic number.

129306912434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

129306912434 is a deficient number, since it is larger than the sum of its proper divisors (92721364174).

129306912434 is a wasteful number, since it uses less digits than its factorization.

129306912434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14970169.

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 129306912434 in words is "one hundred twenty-nine billion, three hundred six million, nine hundred twelve thousand, four hundred thirty-four".