129753533805 has 128 divisors (see below), whose sum is σ = 247527014400. Its totient is φ = 56805525504.

The previous prime is 129753533759. The next prime is 129753533813. The reversal of 129753533805 is 508335357921.

It is a happy number.

It is not a de Polignac number, because 129753533805 - 2¹⁵ = 129753501037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 174634264 + ... + 174635006.

It is an arithmetic number, because the mean of its divisors is an integer number (1933804800).

Almost surely, 2^129753533805 is an apocalyptic number.

129753533805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129753533805 is a deficient number, since it is larger than the sum of its proper divisors (117773480595).

129753533805 is a wasteful number, since it uses less digits than its factorization.

129753533805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443.

The product of its (nonzero) digits is 3402000, while the sum is 51.

The spelling of 129753533805 in words is "one hundred twenty-nine billion, seven hundred fifty-three million, five hundred thirty-three thousand, eight hundred five".