97618662149 has 2 divisors, whose sum is σ = 97618662150. Its totient is φ = 97618662148.

The previous prime is 97618662101. The next prime is 97618662173. The reversal of 97618662149 is 94126681679.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97537536100 + 81126049 = 312310^2 + 9007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97618662149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97618662179) 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, 48809331074 + 48809331075.

It is an arithmetic number, because the mean of its divisors is an integer number (48809331075).

Almost surely, 2^97618662149 is an apocalyptic number.

It is an amenable number.

97618662149 is a deficient number, since it is larger than the sum of its proper divisors (1).

97618662149 is an equidigital number, since it uses as much as digits as its factorization.

97618662149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 59.

The spelling of 97618662149 in words is "ninety-seven billion, six hundred eighteen million, six hundred sixty-two thousand, one hundred forty-nine".