86571243245663 has 16 divisors (see below), whose sum is σ = 96008944412160. Its totient is φ = 77402559436800.

The previous prime is 86571243245423. The next prime is 86571243245671. The reversal of 86571243245663 is 36654234217568.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86571243245663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86571243245596 and 86571243245605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86571243242663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193593173 + ... + 194039838.

It is an arithmetic number, because the mean of its divisors is an integer number (6000559025760).

Almost surely, 2^{86571243245663} is an apocalyptic number.

86571243245663 is a deficient number, since it is larger than the sum of its proper divisors (9437701166497).

86571243245663 is a wasteful number, since it uses less digits than its factorization.

86571243245663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387633358.

The product of its digits is 174182400, while the sum is 62.

The spelling of 86571243245663 in words is "eighty-six trillion, five hundred seventy-one billion, two hundred forty-three million, two hundred forty-five thousand, six hundred sixty-three".