97912077845459 has 2 divisors, whose sum is σ = 97912077845460. Its totient is φ = 97912077845458.

The previous prime is 97912077845423. The next prime is 97912077845479. The reversal of 97912077845459 is 95454877021979.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97912077845459 - 2⁴⁰ = 96812566217683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97912077845459.

It is not a weakly prime, because it can be changed into another prime (97912077845479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48956038922729 + 48956038922730.

It is an arithmetic number, because the mean of its divisors is an integer number (48956038922730).

Almost surely, 2^{97912077845459} is an apocalyptic number.

97912077845459 is a deficient number, since it is larger than the sum of its proper divisors (1).

97912077845459 is an equidigital number, since it uses as much as digits as its factorization.

97912077845459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600300800, while the sum is 77.

The spelling of 97912077845459 in words is "ninety-seven trillion, nine hundred twelve billion, seventy-seven million, eight hundred forty-five thousand, four hundred fifty-nine".