97982419659221 has 2 divisors, whose sum is σ = 97982419659222. Its totient is φ = 97982419659220.

The previous prime is 97982419659181. The next prime is 97982419659277. The reversal of 97982419659221 is 12295691428979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59111110140625 + 38871309518596 = 7688375^2 + 6234686^2 .

It is a cyclic number.

It is not a de Polignac number, because 97982419659221 - 2¹⁰ = 97982419658197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97982419650221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48991209829610 + 48991209829611.

It is an arithmetic number, because the mean of its divisors is an integer number (48991209829611).

Almost surely, 2^{97982419659221} is an apocalyptic number.

It is an amenable number.

97982419659221 is a deficient number, since it is larger than the sum of its proper divisors (1).

97982419659221 is an equidigital number, since it uses as much as digits as its factorization.

97982419659221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352719360, while the sum is 74.

The spelling of 97982419659221 in words is "ninety-seven trillion, nine hundred eighty-two billion, four hundred nineteen million, six hundred fifty-nine thousand, two hundred twenty-one".