129842066880 has 560 divisors, whose sum is σ = 501037469856. Its totient is φ = 31788564480.

The previous prime is 129842066797. The next prime is 129842066909. The reversal of 129842066880 is 88660248921.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 18062647 + ... + 18069833.

Almost surely, 2^129842066880 is an apocalyptic number.

129842066880 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 129842066880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250518734928).

129842066880 is an abundant number, since it is smaller than the sum of its proper divisors (371195402976).

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

129842066880 is a wasteful number, since it uses less digits than its factorization.

129842066880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7274 (or 7255 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 129842066880 in words is "one hundred twenty-nine billion, eight hundred forty-two million, sixty-six thousand, eight hundred eighty".