97985648799 has 12 divisors (see below), whose sum is σ = 141538683000. Its totient is φ = 65321985744.

The previous prime is 97985648791. The next prime is 97985648807. The reversal of 97985648799 is 99784658979.

It is an interprime number because it is at equal distance from previous prime (97985648791) and next prime (97985648807).

It is not a de Polignac number, because 97985648799 - 2³ = 97985648791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97985648791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259197 + ... + 512985.

It is an arithmetic number, because the mean of its divisors is an integer number (11794890250).

Almost surely, 2^97985648799 is an apocalyptic number.

97985648799 is a deficient number, since it is larger than the sum of its proper divisors (43553034201).

97985648799 is a wasteful number, since it uses less digits than its factorization.

97985648799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296694 (or 296691 counting only the distinct ones).

The product of its digits is 2469035520, while the sum is 81.

The spelling of 97985648799 in words is "ninety-seven billion, nine hundred eighty-five million, six hundred forty-eight thousand, seven hundred ninety-nine".