129845584368 has 120 divisors (see below), whose sum is σ = 368446070720. Its totient is φ = 42680701440.

The previous prime is 129845584361. The next prime is 129845584369. The reversal of 129845584368 is 863485548921.

129845584368 is a `hidden beast` number, since 1 + 2 + 9 + 8 + 45 + 584 + 3 + 6 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129845584361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9697038 + ... + 9710418.

Almost surely, 2^129845584368 is an apocalyptic number.

129845584368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129845584368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184223035360).

129845584368 is an abundant number, since it is smaller than the sum of its proper divisors (238600486352).

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

129845584368 is a wasteful number, since it uses less digits than its factorization.

129845584368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14327 (or 14318 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 63.

The spelling of 129845584368 in words is "one hundred twenty-nine billion, eight hundred forty-five million, five hundred eighty-four thousand, three hundred sixty-eight".