7850271371897 has 2 divisors, whose sum is σ = 7850271371898. Its totient is φ = 7850271371896.

The previous prime is 7850271371843. The next prime is 7850271371933. The reversal of 7850271371897 is 7981731720587.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6889344059536 + 960927312361 = 2624756^2 + 980269^2 .

It is a cyclic number.

It is not a de Polignac number, because 7850271371897 - 2⁸ = 7850271371641 is a prime.

It is a super-2 number, since 2×7850271371897² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7850271371837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3925135685948 + 3925135685949.

It is an arithmetic number, because the mean of its divisors is an integer number (3925135685949).

Almost surely, 2^{7850271371897} is an apocalyptic number.

It is an amenable number.

7850271371897 is a deficient number, since it is larger than the sum of its proper divisors (1).

7850271371897 is an equidigital number, since it uses as much as digits as its factorization.

7850271371897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41489280, while the sum is 65.

The spelling of 7850271371897 in words is "seven trillion, eight hundred fifty billion, two hundred seventy-one million, three hundred seventy-one thousand, eight hundred ninety-seven".