129497298452 has 48 divisors (see below), whose sum is σ = 243735899904. Its totient is φ = 60060000000.

The previous prime is 129497298451. The next prime is 129497298461. The reversal of 129497298452 is 254892794921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129497298451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235952 + ... + 560952.

It is an arithmetic number, because the mean of its divisors is an integer number (5077831248).

Almost surely, 2^129497298452 is an apocalyptic number.

It is an amenable number.

129497298452 is a deficient number, since it is larger than the sum of its proper divisors (114238601452).

129497298452 is a wasteful number, since it uses less digits than its factorization.

129497298452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325160 (or 325158 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 62.

The spelling of 129497298452 in words is "one hundred twenty-nine billion, four hundred ninety-seven million, two hundred ninety-eight thousand, four hundred fifty-two".