129457336342 has 8 divisors (see below), whose sum is σ = 204406320600. Its totient is φ = 61321896144.

The previous prime is 129457336339. The next prime is 129457336381. The reversal of 129457336342 is 243633754921.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703385967 + ... + 1703386042.

It is an arithmetic number, because the mean of its divisors is an integer number (25550790075).

Almost surely, 2^129457336342 is an apocalyptic number.

129457336342 is a deficient number, since it is larger than the sum of its proper divisors (74948984258).

129457336342 is a wasteful number, since it uses less digits than its factorization.

129457336342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406772030.

The product of its digits is 3265920, while the sum is 49.

The spelling of 129457336342 in words is "one hundred twenty-nine billion, four hundred fifty-seven million, three hundred thirty-six thousand, three hundred forty-two".