9571397461 has 2 divisors, whose sum is σ = 9571397462. Its totient is φ = 9571397460.

The previous prime is 9571397449. The next prime is 9571397519. The reversal of 9571397461 is 1647931759.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9248476561 + 322920900 = 96169^2 + 17970^2 .

It is a cyclic number.

It is not a de Polignac number, because 9571397461 - 2⁹ = 9571396949 is a prime.

It is a super-2 number, since 2×9571397461² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9571397399 and 9571397408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9571397161) 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 as a sum of consecutive naturals, namely, 4785698730 + 4785698731.

It is an arithmetic number, because the mean of its divisors is an integer number (4785698731).

Almost surely, 2^9571397461 is an apocalyptic number.

It is an amenable number.

9571397461 is a deficient number, since it is larger than the sum of its proper divisors (1).

9571397461 is an equidigital number, since it uses as much as digits as its factorization.

9571397461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840, while the sum is 52.

The square root of 9571397461 is about 97833.5191077169. The cubic root of 9571397461 is about 2123.2042932561.

The spelling of 9571397461 in words is "nine billion, five hundred seventy-one million, three hundred ninety-seven thousand, four hundred sixty-one".