129552844650 has 48 divisors (see below), whose sum is σ = 321382355808. Its totient is φ = 34537608000.

The previous prime is 129552844637. The next prime is 129552844667. The reversal of 129552844650 is 56448255921.

It is a junction number, because it is equal to n+sod(n) for n = 129552844593 and 129552844602.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 414720 + ... + 656580.

It is an arithmetic number, because the mean of its divisors is an integer number (6695465746).

Almost surely, 2^129552844650 is an apocalyptic number.

129552844650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129552844650 is an abundant number, since it is smaller than the sum of its proper divisors (191829511158).

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

129552844650 is a wasteful number, since it uses less digits than its factorization.

129552844650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245447 (or 245442 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 51.

The spelling of 129552844650 in words is "one hundred twenty-nine billion, five hundred fifty-two million, eight hundred forty-four thousand, six hundred fifty".