6397158549775 has 24 divisors (see below), whose sum is σ = 9066584023904. Its totient is φ = 4386189225600.

The previous prime is 6397158549739. The next prime is 6397158549829. The reversal of 6397158549775 is 5779458517936.

It is not a de Polignac number, because 6397158549775 - 2¹¹ = 6397158547727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27672 + ... + 3577021.

Almost surely, 2^{6397158549775} is an apocalyptic number.

6397158549775 is a deficient number, since it is larger than the sum of its proper divisors (2669425474129).

6397158549775 is a wasteful number, since it uses less digits than its factorization.

6397158549775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614851 (or 3614846 counting only the distinct ones).

The product of its digits is 2000376000, while the sum is 76.

The spelling of 6397158549775 in words is "six trillion, three hundred ninety-seven billion, one hundred fifty-eight million, five hundred forty-nine thousand, seven hundred seventy-five".