129457336276 has 24 divisors (see below), whose sum is σ = 239992030656. Its totient is φ = 60891841920.

The previous prime is 129457336273. The next prime is 129457336289. The reversal of 129457336276 is 672633754921.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129457336273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314190 + ... + 598021.

It is an arithmetic number, because the mean of its divisors is an integer number (9999667944).

Almost surely, 2^129457336276 is an apocalyptic number.

It is an amenable number.

129457336276 is a deficient number, since it is larger than the sum of its proper divisors (110534694380).

129457336276 is a wasteful number, since it uses less digits than its factorization.

129457336276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914319 (or 914317 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 55.

The spelling of 129457336276 in words is "one hundred twenty-nine billion, four hundred fifty-seven million, three hundred thirty-six thousand, two hundred seventy-six".