6757990849 has 3 divisors (see below), whose sum is σ = 6758073057. Its totient is φ = 6757908642.

The previous prime is 6757990829. The next prime is 6757990853. The reversal of 6757990849 is 9480997576.

The square root of 6757990849 is 82207.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 6757990849 - 2⁷ = 6757990721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6757990819) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 41104 + ... + 123310.

It is an arithmetic number, because the mean of its divisors is an integer number (2252691019).

Almost surely, 2^6757990849 is an apocalyptic number.

6757990849 is the 82207-th square number.

6757990849 is the 41104-th centered octagonal number.

It is an amenable number.

6757990849 is a deficient number, since it is larger than the sum of its proper divisors (82208).

6757990849 is an frugal number, since it uses more digits than its factorization.

6757990849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164414 (or 82207 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 64.

The cubic root of 6757990849 is about 1890.6270465908.

Multiplying 6757990849 by its sum of digits (64), we get a square (432511414336 = 657656²).

The spelling of 6757990849 in words is "six billion, seven hundred fifty-seven million, nine hundred ninety thousand, eight hundred forty-nine".