86544505476841 has 8 divisors (see below), whose sum is σ = 86806229373864. Its totient is φ = 86282810664960.

The previous prime is 86544505476769. The next prime is 86544505476943. The reversal of 86544505476841 is 14867450544568.

It can be written as a sum of positive squares in 4 ways, for example, as 15376789755625 + 71167715721216 = 3921325^2 + 8436096^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86544505476841 - 2²³ = 86544497088233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86544575476841) 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, 1303780 + ... + 13220773.

It is an arithmetic number, because the mean of its divisors is an integer number (10850778671733).

Almost surely, 2^{86544505476841} is an apocalyptic number.

It is an amenable number.

86544505476841 is a deficient number, since it is larger than the sum of its proper divisors (261723897023).

86544505476841 is a wasteful number, since it uses less digits than its factorization.

86544505476841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14542571.

The product of its (nonzero) digits is 516096000, while the sum is 67.

The spelling of 86544505476841 in words is "eighty-six trillion, five hundred forty-four billion, five hundred five million, four hundred seventy-six thousand, eight hundred forty-one".