6397694887023 has 72 divisors (see below), whose sum is σ = 10383665580288. Its totient is φ = 3791250540000.

The previous prime is 6397694887009. The next prime is 6397694887027. The reversal of 6397694887023 is 3207884967936.

6397694887023 is a `hidden beast` number, since 6 + 3 + 9 + 76 + 9 + 488 + 70 + 2 + 3 = 666.

It is not a de Polignac number, because 6397694887023 - 2¹² = 6397694882927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6397694887027) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 53733868 + ... + 53852798.

It is an arithmetic number, because the mean of its divisors is an integer number (144217577504).

Almost surely, 2^{6397694887023} is an apocalyptic number.

6397694887023 is a deficient number, since it is larger than the sum of its proper divisors (3985970693265).

6397694887023 is a wasteful number, since it uses less digits than its factorization.

6397694887023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120057 (or 120043 counting only the distinct ones).

The product of its (nonzero) digits is 658409472, while the sum is 72.

The spelling of 6397694887023 in words is "six trillion, three hundred ninety-seven billion, six hundred ninety-four million, eight hundred eighty-seven thousand, twenty-three".