129842470680 has 128 divisors (see below), whose sum is σ = 421163608320. Its totient is φ = 31833792000.

The previous prime is 129842470679. The next prime is 129842470697. The reversal of 129842470680 is 86074248921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225759 + ... + 557361.

It is an arithmetic number, because the mean of its divisors is an integer number (3290340690).

Almost surely, 2^129842470680 is an apocalyptic number.

129842470680 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 129842470680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210581804160).

129842470680 is an abundant number, since it is smaller than the sum of its proper divisors (291321137640).

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

129842470680 is a wasteful number, since it uses less digits than its factorization.

129842470680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331881 (or 331877 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 129842470680 in words is "one hundred twenty-nine billion, eight hundred forty-two million, four hundred seventy thousand, six hundred eighty".