129226928950950 has 24 divisors (see below), whose sum is σ = 320482783798728. Its totient is φ = 34460514386880.

The previous prime is 129226928950937. The next prime is 129226928951041. The reversal of 129226928950950 is 59059829622921.

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 11 ways as a sum of consecutive naturals, for example, 430756429687 + ... + 430756429986.

It is an arithmetic number, because the mean of its divisors is an integer number (13353449324947).

Almost surely, 2^{129226928950950} is an apocalyptic number.

129226928950950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129226928950950 is an abundant number, since it is smaller than the sum of its proper divisors (191255854847778).

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

129226928950950 is a wasteful number, since it uses less digits than its factorization.

129226928950950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861512859688 (or 861512859683 counting only the distinct ones).

The product of its (nonzero) digits is 125971200, while the sum is 69.

The spelling of 129226928950950 in words is "one hundred twenty-nine trillion, two hundred twenty-six billion, nine hundred twenty-eight million, nine hundred fifty thousand, nine hundred fifty".