129807442944 has 297 divisors, whose sum is σ = 392032639947. Its totient is φ = 42957858816.

The previous prime is 129807442847. The next prime is 129807442951. The reversal of 129807442944 is 449244708921.

The square root of 129807442944 is 360288.

It is a perfect power (a square), and thus also a powerful number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 933866427 + ... + 933866565.

Almost surely, 2^129807442944 is an apocalyptic number.

129807442944 is the 360288-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129807442944

129807442944 is an abundant number, since it is smaller than the sum of its proper divisors (262225197003).

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

129807442944 is an frugal number, since it uses more digits than its factorization.

129807442944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 129807442944 in words is "one hundred twenty-nine billion, eight hundred seven million, four hundred forty-two thousand, nine hundred forty-four".