6309129920 has 112 divisors (see below), whose sum is σ = 15548018688. Its totient is φ = 2435988480.

The previous prime is 6309129859. The next prime is 6309129923. The reversal of 6309129920 is 299219036.

It is not an unprimeable number, because it can be changed into a prime (6309129923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6417749 + ... + 6418731.

Almost surely, 2^6309129920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6309129920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7774009344).

6309129920 is an abundant number, since it is smaller than the sum of its proper divisors (9238888768).

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

6309129920 is a wasteful number, since it uses less digits than its factorization.

6309129920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678 (or 1668 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 6309129920 is about 79430.0316001448. The cubic root of 6309129920 is about 1847.8064988577.

The spelling of 6309129920 in words is "six billion, three hundred nine million, one hundred twenty-nine thousand, nine hundred twenty".