129041063476 has 24 divisors (see below), whose sum is σ = 251578734120. Its totient is φ = 57503709312.

The previous prime is 129041063453. The next prime is 129041063497. The reversal of 129041063476 is 674360140921.

It can be written as a sum of positive squares in 4 ways, for example, as 181602576 + 128859460900 = 13476^2 + 358970^2 .

It is a super-2 number, since 2×129041063476² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 42783991 + ... + 42787006.

It is an arithmetic number, because the mean of its divisors is an integer number (10482447255).

Almost surely, 2^129041063476 is an apocalyptic number.

It is an amenable number.

129041063476 is a deficient number, since it is larger than the sum of its proper divisors (122537670644).

129041063476 is a wasteful number, since it uses less digits than its factorization.

129041063476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85571043 (or 85571041 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 129041063476 in words is "one hundred twenty-nine billion, forty-one million, sixty-three thousand, four hundred seventy-six".