129804171481 has 8 divisors (see below), whose sum is σ = 136650664800. Its totient is φ = 122959147680.

The previous prime is 129804171473. The next prime is 129804171491. The reversal of 129804171481 is 184171408921.

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 129804171481 - 2³ = 129804171473 is a prime.

It is a super-2 number, since 2×129804171481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129804171401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183700 + ... + 541621.

It is an arithmetic number, because the mean of its divisors is an integer number (17081333100).

Almost surely, 2^129804171481 is an apocalyptic number.

It is an amenable number.

129804171481 is a deficient number, since it is larger than the sum of its proper divisors (6846493319).

129804171481 is an equidigital number, since it uses as much as digits as its factorization.

129804171481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734759.

The product of its (nonzero) digits is 129024, while the sum is 46.

The spelling of 129804171481 in words is "one hundred twenty-nine billion, eight hundred four million, one hundred seventy-one thousand, four hundred eighty-one".