86671524191 has 4 divisors (see below), whose sum is σ = 99053170512. Its totient is φ = 74289877872.

The previous prime is 86671524119. The next prime is 86671524209. The reversal of 86671524191 is 19142517668.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 86671524191 - 2³⁴ = 69491655007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86671524491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6190823150 + ... + 6190823163.

It is an arithmetic number, because the mean of its divisors is an integer number (24763292628).

Almost surely, 2^86671524191 is an apocalyptic number.

86671524191 is a deficient number, since it is larger than the sum of its proper divisors (12381646321).

86671524191 is a wasteful number, since it uses less digits than its factorization.

86671524191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12381646320.

The product of its digits is 725760, while the sum is 50.

The spelling of 86671524191 in words is "eighty-six billion, six hundred seventy-one million, five hundred twenty-four thousand, one hundred ninety-one".