129435077406 has 16 divisors (see below), whose sum is σ = 260846264448. Its totient is φ = 42815674200.

The previous prime is 129435077383. The next prime is 129435077441. The reversal of 129435077406 is 604770534921.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82337050 + ... + 82338621.

It is an arithmetic number, because the mean of its divisors is an integer number (16302891528).

Almost surely, 2^129435077406 is an apocalyptic number.

129435077406 is an abundant number, since it is smaller than the sum of its proper divisors (131411187042).

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

129435077406 is a wasteful number, since it uses less digits than its factorization.

129435077406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164675807.

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 129435077406 in words is "one hundred twenty-nine billion, four hundred thirty-five million, seventy-seven thousand, four hundred six".