129458699904 has 64 divisors (see below), whose sum is σ = 348585359040. Its totient is φ = 42561755136.

The previous prime is 129458699893. The next prime is 129458699911. The reversal of 129458699904 is 409996854921.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2281092 + ... + 2337155.

It is an arithmetic number, because the mean of its divisors is an integer number (5446646235).

Almost surely, 2^129458699904 is an apocalyptic number.

It is an amenable number.

129458699904 is an abundant number, since it is smaller than the sum of its proper divisors (219126659136).

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

129458699904 is an equidigital number, since it uses as much as digits as its factorization.

129458699904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618337 (or 4618325 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 66.

The spelling of 129458699904 in words is "one hundred twenty-nine billion, four hundred fifty-eight million, six hundred ninety-nine thousand, nine hundred four".