129404118132 has 48 divisors (see below), whose sum is σ = 336570998400. Its totient is φ = 42995998080.

The previous prime is 129404118091. The next prime is 129404118143. The reversal of 129404118132 is 231811404921.

129404118132 is a `hidden beast` number, since 1 + 2 + 9 + 404 + 118 + 132 = 666.

It is a super-2 number, since 2×129404118132² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1892757 + ... + 1959932.

It is an arithmetic number, because the mean of its divisors is an integer number (7011895800).

Almost surely, 2^129404118132 is an apocalyptic number.

129404118132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129404118132 is an abundant number, since it is smaller than the sum of its proper divisors (207166880268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129404118132 is a wasteful number, since it uses less digits than its factorization.

129404118132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3853013 (or 3853005 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 129404118132 in words is "one hundred twenty-nine billion, four hundred four million, one hundred eighteen thousand, one hundred thirty-two".