129081406953 has 8 divisors (see below), whose sum is σ = 172218945600. Its totient is φ = 85999069808.

The previous prime is 129081406939. The next prime is 129081406967. The reversal of 129081406953 is 359604180921.

It is an interprime number because it is at equal distance from previous prime (129081406939) and next prime (129081406967).

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

It is a cyclic number.

It is not a de Polignac number, because 129081406953 - 2²⁰ = 129080358377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (129081405953) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13794918 + ... + 13804271.

It is an arithmetic number, because the mean of its divisors is an integer number (21527368200).

Almost surely, 2^129081406953 is an apocalyptic number.

It is an amenable number.

129081406953 is a deficient number, since it is larger than the sum of its proper divisors (43137538647).

129081406953 is a wasteful number, since it uses less digits than its factorization.

129081406953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27600751.

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 129081406953 in words is "one hundred twenty-nine billion, eighty-one million, four hundred six thousand, nine hundred fifty-three".