6309939712 has 80 divisors (see below), whose sum is σ = 13346958240. Its totient is φ = 2975035392.

The previous prime is 6309939709. The next prime is 6309939731. The reversal of 6309939712 is 2179399036.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633523 + ... + 643405.

It is an arithmetic number, because the mean of its divisors is an integer number (166836978).

Almost surely, 2^6309939712 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 6309939712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6673479120).

6309939712 is an abundant number, since it is smaller than the sum of its proper divisors (7037018528).

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

6309939712 is an equidigital number, since it uses as much as digits as its factorization.

6309939712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9973 (or 9957 counting only the distinct ones).

The product of its (nonzero) digits is 551124, while the sum is 49.

The square root of 6309939712 is about 79435.1289543864. The cubic root of 6309939712 is about 1847.8855522784.

The spelling of 6309939712 in words is "six billion, three hundred nine million, nine hundred thirty-nine thousand, seven hundred twelve".