86544224788221 has 8 divisors (see below), whose sum is σ = 128213666352960. Its totient is φ = 57696149858796.

The previous prime is 86544224788129. The next prime is 86544224788237. The reversal of 86544224788221 is 12288742244568.

It is a happy number.

86544224788221 is a `hidden beast` number, since 8 + 6 + 5 + 44 + 22 + 478 + 82 + 21 = 666.

It is not a de Polignac number, because 86544224788221 - 2¹³ = 86544224780029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86544224788271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1602670829385 + ... + 1602670829438.

It is an arithmetic number, because the mean of its divisors is an integer number (16026708294120).

Almost surely, 2^{86544224788221} is an apocalyptic number.

It is an amenable number.

86544224788221 is a deficient number, since it is larger than the sum of its proper divisors (41669441564739).

86544224788221 is a wasteful number, since it uses less digits than its factorization.

86544224788221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205341658832 (or 3205341658826 counting only the distinct ones).

The product of its digits is 110100480, while the sum is 63.

The spelling of 86544224788221 in words is "eighty-six trillion, five hundred forty-four billion, two hundred twenty-four million, seven hundred eighty-eight thousand, two hundred twenty-one".