97018645187 has 2 divisors, whose sum is σ = 97018645188. Its totient is φ = 97018645186.

The previous prime is 97018645183. The next prime is 97018645189. The reversal of 97018645187 is 78154681079.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97018645187 - 2² = 97018645183 is a prime.

Together with 97018645189, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97018645183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48509322593 + 48509322594.

It is an arithmetic number, because the mean of its divisors is an integer number (48509322594).

Almost surely, 2^97018645187 is an apocalyptic number.

97018645187 is a deficient number, since it is larger than the sum of its proper divisors (1).

97018645187 is an equidigital number, since it uses as much as digits as its factorization.

97018645187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3386880, while the sum is 56.

The spelling of 97018645187 in words is "ninety-seven billion, eighteen million, six hundred forty-five thousand, one hundred eighty-seven".