97194185443 has 2 divisors, whose sum is σ = 97194185444. Its totient is φ = 97194185442.

The previous prime is 97194185441. The next prime is 97194185447. The reversal of 97194185443 is 34458149179.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97194185443 - 2¹ = 97194185441 is a prime.

Together with 97194185441, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (97194185441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48597092721 + 48597092722.

It is an arithmetic number, because the mean of its divisors is an integer number (48597092722).

Almost surely, 2^97194185443 is an apocalyptic number.

97194185443 is a deficient number, since it is larger than the sum of its proper divisors (1).

97194185443 is an equidigital number, since it uses as much as digits as its factorization.

97194185443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 55.

The spelling of 97194185443 in words is "ninety-seven billion, one hundred ninety-four million, one hundred eighty-five thousand, four hundred forty-three".