129855834807404 has 6 divisors (see below), whose sum is σ = 227247710912964. Its totient is φ = 64927917403700.

The previous prime is 129855834807401. The next prime is 129855834807463. The reversal of 129855834807404 is 404708438558921.

It is not an unprimeable number, because it can be changed into a prime (129855834807401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16231979350922 + ... + 16231979350929.

It is an arithmetic number, because the mean of its divisors is an integer number (37874618485494).

Almost surely, 2^{129855834807404} is an apocalyptic number.

It is an amenable number.

129855834807404 is a deficient number, since it is larger than the sum of its proper divisors (97391876105560).

129855834807404 is a wasteful number, since it uses less digits than its factorization.

129855834807404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32463958701855 (or 32463958701853 counting only the distinct ones).

The product of its (nonzero) digits is 309657600, while the sum is 68.

The spelling of 129855834807404 in words is "one hundred twenty-nine trillion, eight hundred fifty-five billion, eight hundred thirty-four million, eight hundred seven thousand, four hundred four".