97687488920143 has 2 divisors, whose sum is σ = 97687488920144. Its totient is φ = 97687488920142.

The previous prime is 97687488920141. The next prime is 97687488920179. The reversal of 97687488920143 is 34102988478679.

It is a weak prime.

It is an emirp because it is prime and its reverse (34102988478679) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97687488920143 - 2¹ = 97687488920141 is a prime.

It is a super-2 number, since 2×97687488920143² (a number of 29 digits) contains 22 as substring.

Together with 97687488920141, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 97687488920143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97687488920141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48843744460071 + 48843744460072.

It is an arithmetic number, because the mean of its divisors is an integer number (48843744460072).

Almost surely, 2^{97687488920143} is an apocalyptic number.

97687488920143 is a deficient number, since it is larger than the sum of its proper divisors (1).

97687488920143 is an equidigital number, since it uses as much as digits as its factorization.

97687488920143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1170505728, while the sum is 76.

The spelling of 97687488920143 in words is "ninety-seven trillion, six hundred eighty-seven billion, four hundred eighty-eight million, nine hundred twenty thousand, one hundred forty-three".