6729938280 has 384 divisors, whose sum is σ = 24237158400. Its totient is φ = 1619025408.

The previous prime is 6729938239. The next prime is 6729938287. The reversal of 6729938280 is 828399276.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6729938287) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 52991577 + ... + 52991703.

It is an arithmetic number, because the mean of its divisors is an integer number (63117600).

Almost surely, 2^6729938280 is an apocalyptic number.

6729938280 is a gapful number since it is divisible by the number (60) 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 6729938280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12118579200).

6729938280 is an abundant number, since it is smaller than the sum of its proper divisors (17507220120).

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

6729938280 is a wasteful number, since it uses less digits than its factorization.

6729938280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 6729938280 is about 82036.2010334462. The cubic root of 6729938280 is about 1888.0074069960.

The spelling of 6729938280 in words is "six billion, seven hundred twenty-nine million, nine hundred thirty-eight thousand, two hundred eighty".