97687488920479 has 2 divisors, whose sum is σ = 97687488920480. Its totient is φ = 97687488920478.

The previous prime is 97687488920473. The next prime is 97687488920513. The reversal of 97687488920479 is 97402988478679.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97687488920479 - 2²⁹ = 97686952049567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97687488920479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97687488920473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48843744460239 + 48843744460240.

It is an arithmetic number, because the mean of its divisors is an integer number (48843744460240).

Almost surely, 2^{97687488920479} is an apocalyptic number.

97687488920479 is a deficient number, since it is larger than the sum of its proper divisors (1).

97687488920479 is an equidigital number, since it uses as much as digits as its factorization.

97687488920479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24580620288, while the sum is 88.

The spelling of 97687488920479 in words is "ninety-seven trillion, six hundred eighty-seven billion, four hundred eighty-eight million, nine hundred twenty thousand, four hundred seventy-nine".