97909798807 has 2 divisors, whose sum is σ = 97909798808. Its totient is φ = 97909798806.

The previous prime is 97909798799. The next prime is 97909798829. The reversal of 97909798807 is 70889790979.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97909798807 - 2³ = 97909798799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97909798807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97909798837) 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, 48954899403 + 48954899404.

It is an arithmetic number, because the mean of its divisors is an integer number (48954899404).

Almost surely, 2^97909798807 is an apocalyptic number.

97909798807 is a deficient number, since it is larger than the sum of its proper divisors (1).

97909798807 is an equidigital number, since it uses as much as digits as its factorization.

97909798807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144027072, while the sum is 73.

The spelling of 97909798807 in words is "ninety-seven billion, nine hundred nine million, seven hundred ninety-eight thousand, eight hundred seven".