129312457246 has 8 divisors (see below), whose sum is σ = 221678498160. Its totient is φ = 55419624528.

The previous prime is 129312457229. The next prime is 129312457283. The reversal of 129312457246 is 642754213921.

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

It is a junction number, because it is equal to n+sod(n) for n = 129312457196 and 129312457205.

It is a congruent number.

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, 4618302031 + ... + 4618302058.

It is an arithmetic number, because the mean of its divisors is an integer number (27709812270).

Almost surely, 2^129312457246 is an apocalyptic number.

129312457246 is a deficient number, since it is larger than the sum of its proper divisors (92366040914).

129312457246 is an equidigital number, since it uses as much as digits as its factorization.

129312457246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9236604098.

The product of its digits is 725760, while the sum is 46.

The spelling of 129312457246 in words is "one hundred twenty-nine billion, three hundred twelve million, four hundred fifty-seven thousand, two hundred forty-six".