129804905753 has 4 divisors (see below), whose sum is σ = 129806008080. Its totient is φ = 129803803428.

The previous prime is 129804905729. The next prime is 129804905759. The reversal of 129804905753 is 357509408921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 129804905753 - 2⁸ = 129804905497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129804905695 and 129804905704.

It is not an unprimeable number, because it can be changed into a prime (129804905759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350075 + ... + 618192.

It is an arithmetic number, because the mean of its divisors is an integer number (32451502020).

Almost surely, 2^129804905753 is an apocalyptic number.

It is an amenable number.

129804905753 is a deficient number, since it is larger than the sum of its proper divisors (1102327).

129804905753 is an equidigital number, since it uses as much as digits as its factorization.

129804905753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102326.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 129804905753 in words is "one hundred twenty-nine billion, eight hundred four million, nine hundred five thousand, seven hundred fifty-three".