8137574859397 has 2 divisors, whose sum is σ = 8137574859398. Its totient is φ = 8137574859396.

The previous prime is 8137574859391. The next prime is 8137574859419. The reversal of 8137574859397 is 7939584757318.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5401226994916 + 2736347864481 = 2324054^2 + 1654191^2 .

It is a cyclic number.

It is not a de Polignac number, because 8137574859397 - 2¹⁵ = 8137574826629 is a prime.

It is a super-3 number, since 3×8137574859397³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8137574859391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4068787429698 + 4068787429699.

It is an arithmetic number, because the mean of its divisors is an integer number (4068787429699).

Almost surely, 2^{8137574859397} is an apocalyptic number.

It is an amenable number.

8137574859397 is a deficient number, since it is larger than the sum of its proper divisors (1).

8137574859397 is an equidigital number, since it uses as much as digits as its factorization.

8137574859397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1600300800, while the sum is 76.

The spelling of 8137574859397 in words is "eight trillion, one hundred thirty-seven billion, five hundred seventy-four million, eight hundred fifty-nine thousand, three hundred ninety-seven".