86271030491 has 4 divisors (see below), whose sum is σ = 87077301912. Its totient is φ = 85464759072.

The previous prime is 86271030481. The next prime is 86271030493. The reversal of 86271030491 is 19403017268.

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

It is a cyclic number.

It is not a de Polignac number, because 86271030491 - 2¹⁴ = 86271014107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86271030493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403135550 + ... + 403135763.

It is an arithmetic number, because the mean of its divisors is an integer number (21769325478).

Almost surely, 2^86271030491 is an apocalyptic number.

86271030491 is a deficient number, since it is larger than the sum of its proper divisors (806271421).

86271030491 is a wasteful number, since it uses less digits than its factorization.

86271030491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806271420.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 86271030491 in words is "eighty-six billion, two hundred seventy-one million, thirty thousand, four hundred ninety-one".