97645769249 has 16 divisors (see below), whose sum is σ = 116520835200. Its totient is φ = 81749934000.

The previous prime is 97645769227. The next prime is 97645769279. The reversal of 97645769249 is 94296754679.

It is not a de Polignac number, because 97645769249 - 2⁸ = 97645768993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97645769279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3295502 + ... + 3324999.

It is an arithmetic number, because the mean of its divisors is an integer number (7282552200).

Almost surely, 2^97645769249 is an apocalyptic number.

It is an amenable number.

97645769249 is a deficient number, since it is larger than the sum of its proper divisors (18875065951).

97645769249 is an equidigital number, since it uses as much as digits as its factorization.

97645769249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6620565 (or 6620551 counting only the distinct ones).

The product of its digits is 205752960, while the sum is 68.

The spelling of 97645769249 in words is "ninety-seven billion, six hundred forty-five million, seven hundred sixty-nine thousand, two hundred forty-nine".