6537897399 has 16 divisors (see below), whose sum is σ = 9542139264. Its totient is φ = 3948832800.

The previous prime is 6537897371. The next prime is 6537897403. The reversal of 6537897399 is 9937987356.

It is not a de Polignac number, because 6537897399 - 2⁵ = 6537897367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6537897599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328417 + ... + 347754.

It is an arithmetic number, because the mean of its divisors is an integer number (596383704).

Almost surely, 2^6537897399 is an apocalyptic number.

6537897399 is a deficient number, since it is larger than the sum of its proper divisors (3004241865).

6537897399 is a wasteful number, since it uses less digits than its factorization.

6537897399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676478.

The product of its digits is 77157360, while the sum is 66.

The square root of 6537897399 is about 80857.2655919058. The cubic root of 6537897399 is about 1869.8755385341.

The spelling of 6537897399 in words is "six billion, five hundred thirty-seven million, eight hundred ninety-seven thousand, three hundred ninety-nine".