86648579018447 has 2 divisors, whose sum is σ = 86648579018448. Its totient is φ = 86648579018446.

The previous prime is 86648579018429. The next prime is 86648579018459. The reversal of 86648579018447 is 74481097584668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86648579018447 - 2³² = 86644284051151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86648579018047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43324289509223 + 43324289509224.

It is an arithmetic number, because the mean of its divisors is an integer number (43324289509224).

Almost surely, 2^{86648579018447} is an apocalyptic number.

86648579018447 is a deficient number, since it is larger than the sum of its proper divisors (1).

86648579018447 is an equidigital number, since it uses as much as digits as its factorization.

86648579018447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2601123840, while the sum is 77.

The spelling of 86648579018447 in words is "eighty-six trillion, six hundred forty-eight billion, five hundred seventy-nine million, eighteen thousand, four hundred forty-seven".