97914842009 has 2 divisors, whose sum is σ = 97914842010. Its totient is φ = 97914842008.

The previous prime is 97914841931. The next prime is 97914842023. The reversal of 97914842009 is 90024841979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87352758025 + 10562083984 = 295555^2 + 102772^2 .

It is a cyclic number.

It is not a de Polignac number, because 97914842009 - 2²⁰ = 97913793433 is a prime.

It is not a weakly prime, because it can be changed into another prime (97914842029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48957421004 + 48957421005.

It is an arithmetic number, because the mean of its divisors is an integer number (48957421005).

Almost surely, 2^97914842009 is an apocalyptic number.

It is an amenable number.

97914842009 is a deficient number, since it is larger than the sum of its proper divisors (1).

97914842009 is an equidigital number, since it uses as much as digits as its factorization.

97914842009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 97914842009 in words is "ninety-seven billion, nine hundred fourteen million, eight hundred forty-two thousand, nine".