86705447523 has 8 divisors (see below), whose sum is σ = 115782163536. Its totient is φ = 57716181600.

The previous prime is 86705447513. The next prime is 86705447557. The reversal of 86705447523 is 32574450768.

It is a happy number.

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

It is not a de Polignac number, because 86705447523 - 2¹² = 86705443427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86705447513) 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, 21860208 + ... + 21864173.

It is an arithmetic number, because the mean of its divisors is an integer number (14472770442).

Almost surely, 2^86705447523 is an apocalyptic number.

86705447523 is a deficient number, since it is larger than the sum of its proper divisors (29076716013).

86705447523 is a wasteful number, since it uses less digits than its factorization.

86705447523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43725045.

The product of its (nonzero) digits is 5644800, while the sum is 51.

The spelling of 86705447523 in words is "eighty-six billion, seven hundred five million, four hundred forty-seven thousand, five hundred twenty-three".