97509906833 has 2 divisors, whose sum is σ = 97509906834. Its totient is φ = 97509906832.

The previous prime is 97509906779. The next prime is 97509906889. The reversal of 97509906833 is 33860990579.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63276396304 + 34233510529 = 251548^2 + 185023^2 .

It is a cyclic number.

It is not a de Polignac number, because 97509906833 - 2⁸ = 97509906577 is a prime.

It is not a weakly prime, because it can be changed into another prime (97509900833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48754953416 + 48754953417.

It is an arithmetic number, because the mean of its divisors is an integer number (48754953417).

Almost surely, 2^97509906833 is an apocalyptic number.

It is an amenable number.

97509906833 is a deficient number, since it is larger than the sum of its proper divisors (1).

97509906833 is an equidigital number, since it uses as much as digits as its factorization.

97509906833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11022480, while the sum is 59.

The spelling of 97509906833 in words is "ninety-seven billion, five hundred nine million, nine hundred six thousand, eight hundred thirty-three".