97965476569 has 2 divisors, whose sum is σ = 97965476570. Its totient is φ = 97965476568.

The previous prime is 97965476533. The next prime is 97965476597. The reversal of 97965476569 is 96567456979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68493170944 + 29472305625 = 261712^2 + 171675^2 .

It is a cyclic number.

It is not a de Polignac number, because 97965476569 - 2²¹ = 97963379417 is a prime.

It is a super-2 number, since 2×97965476569² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97965476369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48982738284 + 48982738285.

It is an arithmetic number, because the mean of its divisors is an integer number (48982738285).

Almost surely, 2^97965476569 is an apocalyptic number.

It is an amenable number.

97965476569 is a deficient number, since it is larger than the sum of its proper divisors (1).

97965476569 is an equidigital number, since it uses as much as digits as its factorization.

97965476569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 771573600, while the sum is 73.

The spelling of 97965476569 in words is "ninety-seven billion, nine hundred sixty-five million, four hundred seventy-six thousand, five hundred sixty-nine".