86581209606524 has 24 divisors (see below), whose sum is σ = 152865153918288. Its totient is φ = 42905487322880.

The previous prime is 86581209606509. The next prime is 86581209606539. The reversal of 86581209606524 is 42560690218568.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86581209606509) and next prime (86581209606539).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5162234 + ... + 14135454.

It is an arithmetic number, because the mean of its divisors is an integer number (6369381413262).

Almost surely, 2^{86581209606524} is an apocalyptic number.

It is an amenable number.

86581209606524 is a deficient number, since it is larger than the sum of its proper divisors (66283944311764).

86581209606524 is a wasteful number, since it uses less digits than its factorization.

86581209606524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8994685 (or 8994683 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 62.

The spelling of 86581209606524 in words is "eighty-six trillion, five hundred eighty-one billion, two hundred nine million, six hundred six thousand, five hundred twenty-four".