86271706509 has 8 divisors (see below), whose sum is σ = 115134187872. Its totient is φ = 57461848080.

The previous prime is 86271706459. The next prime is 86271706529. The reversal of 86271706509 is 90560717268.

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

It is not a de Polignac number, because 86271706509 - 2²¹ = 86269609357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86271706529) 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, 13151907 + ... + 13158464.

It is an arithmetic number, because the mean of its divisors is an integer number (14391773484).

Almost surely, 2^86271706509 is an apocalyptic number.

It is an amenable number.

86271706509 is a deficient number, since it is larger than the sum of its proper divisors (28862481363).

86271706509 is a wasteful number, since it uses less digits than its factorization.

86271706509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26311467.

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 86271706509 in words is "eighty-six billion, two hundred seventy-one million, seven hundred six thousand, five hundred nine".