86271030421 has 2 divisors, whose sum is σ = 86271030422. Its totient is φ = 86271030420.

The previous prime is 86271030403. The next prime is 86271030479. The reversal of 86271030421 is 12403017268.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82176822225 + 4094208196 = 286665^2 + 63986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86271030421 is a prime.

It is a super-2 number, since 2×86271030421² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86271030481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43135515210 + 43135515211.

It is an arithmetic number, because the mean of its divisors is an integer number (43135515211).

Almost surely, 2^86271030421 is an apocalyptic number.

It is an amenable number.

86271030421 is a deficient number, since it is larger than the sum of its proper divisors (1).

86271030421 is an equidigital number, since it uses as much as digits as its factorization.

86271030421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

Adding to 86271030421 its reverse (12403017268), we get a palindrome (98674047689).

The spelling of 86271030421 in words is "eighty-six billion, two hundred seventy-one million, thirty thousand, four hundred twenty-one".