6397259531238 has 16 divisors (see below), whose sum is σ = 14216132291760. Its totient is φ = 2132419843728.

The previous prime is 6397259531177. The next prime is 6397259531239. The reversal of 6397259531238 is 8321359527936.

It is a happy number.

6397259531238 is a `hidden beast` number, since 6 + 3 + 9 + 7 + 2 + 595 + 3 + 1 + 2 + 38 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6397259531239) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 59233884495 + ... + 59233884602.

It is an arithmetic number, because the mean of its divisors is an integer number (888508268235).

Almost surely, 2^{6397259531238} is an apocalyptic number.

6397259531238 is an abundant number, since it is smaller than the sum of its proper divisors (7818872760522).

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

6397259531238 is a wasteful number, since it uses less digits than its factorization.

6397259531238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118467769108 (or 118467769102 counting only the distinct ones).

The product of its digits is 73483200, while the sum is 63.

The spelling of 6397259531238 in words is "six trillion, three hundred ninety-seven billion, two hundred fifty-nine million, five hundred thirty-one thousand, two hundred thirty-eight".