86542663851571 has 8 divisors (see below), whose sum is σ = 86828922224640. Its totient is φ = 86256719533512.

The previous prime is 86542663851547. The next prime is 86542663851691. The reversal of 86542663851571 is 17515836624568.

It is a happy number.

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 86542663851571 - 2⁷ = 86542663851443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86542663851497 and 86542663851506.

It is not an unprimeable number, because it can be changed into a prime (86542663851271) 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, 77961705 + ... + 79063978.

It is an arithmetic number, because the mean of its divisors is an integer number (10853615278080).

Almost surely, 2^{86542663851571} is an apocalyptic number.

86542663851571 is a deficient number, since it is larger than the sum of its proper divisors (286258373069).

86542663851571 is a wasteful number, since it uses less digits than its factorization.

86542663851571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157027505.

The product of its digits is 290304000, while the sum is 67.

The spelling of 86542663851571 in words is "eighty-six trillion, five hundred forty-two billion, six hundred sixty-three million, eight hundred fifty-one thousand, five hundred seventy-one".