129841387560 has 512 divisors, whose sum is σ = 503387136000. Its totient is φ = 29528395776.

The previous prime is 129841387513. The next prime is 129841387603. The reversal of 129841387560 is 65783148921.

129841387560 is a `hidden beast` number, since 1 + 2 + 9 + 8 + 41 + 38 + 7 + 560 = 666.

It is a super-2 number, since 2×129841387560² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 129841387497 and 129841387506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8015229 + ... + 8031411.

It is an arithmetic number, because the mean of its divisors is an integer number (983178000).

It is a 1-persistent number, because it is pandigital, but 2⋅129841387560 = 259682775120 is not.

Almost surely, 2^129841387560 is an apocalyptic number.

129841387560 is a gapful number since it is divisible by the number (10) 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 129841387560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251693568000).

129841387560 is an abundant number, since it is smaller than the sum of its proper divisors (373545748440).

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

129841387560 is a wasteful number, since it uses less digits than its factorization.

129841387560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16262 (or 16252 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 129841387560 in words is "one hundred twenty-nine billion, eight hundred forty-one million, three hundred eighty-seven thousand, five hundred sixty".