86627131109 has 2 divisors, whose sum is σ = 86627131110. Its totient is φ = 86627131108.

The previous prime is 86627131057. The next prime is 86627131121. The reversal of 86627131109 is 90113172668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79036888225 + 7590242884 = 281135^2 + 87122^2 .

It is a cyclic number.

It is not a de Polignac number, because 86627131109 - 2³² = 82332163813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86627131109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86627131139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43313565554 + 43313565555.

It is an arithmetic number, because the mean of its divisors is an integer number (43313565555).

Almost surely, 2^86627131109 is an apocalyptic number.

It is an amenable number.

86627131109 is a deficient number, since it is larger than the sum of its proper divisors (1).

86627131109 is an equidigital number, since it uses as much as digits as its factorization.

86627131109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 86627131109 in words is "eighty-six billion, six hundred twenty-seven million, one hundred thirty-one thousand, one hundred nine".