6756657540 has 24 divisors (see below), whose sum is σ = 18918641280. Its totient is φ = 1801775328.

The previous prime is 6756657529. The next prime is 6756657563. The reversal of 6756657540 is 457566576.

It is a super-2 number, since 2×6756657540² = 91304842225677703200, which contains 22 as substring.

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, 56305420 + ... + 56305539.

It is an arithmetic number, because the mean of its divisors is an integer number (788276720).

Almost surely, 2^6756657540 is an apocalyptic number.

6756657540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6756657540 is an abundant number, since it is smaller than the sum of its proper divisors (12161983740).

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

6756657540 is a wasteful number, since it uses less digits than its factorization.

6756657540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112610971 (or 112610969 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 51.

The square root of 6756657540 is about 82198.8901384927. The cubic root of 6756657540 is about 1890.5027021463.

The spelling of 6756657540 in words is "six billion, seven hundred fifty-six million, six hundred fifty-seven thousand, five hundred forty".