6749750280 has 512 divisors, whose sum is σ = 26093813760. Its totient is φ = 1358622720.

The previous prime is 6749750279. The next prime is 6749750297. The reversal of 6749750280 is 820579476.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 42991962 + ... + 42992118.

It is an arithmetic number, because the mean of its divisors is an integer number (50964480).

Almost surely, 2^6749750280 is an apocalyptic number.

6749750280 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 6749750280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13046906880).

6749750280 is an abundant number, since it is smaller than the sum of its proper divisors (19344063480).

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

6749750280 is a wasteful number, since it uses less digits than its factorization.

6749750280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 6749750280 is about 82156.8638641958. The cubic root of 6749750280 is about 1889.8582688153.

The spelling of 6749750280 in words is "six billion, seven hundred forty-nine million, seven hundred fifty thousand, two hundred eighty".