86498168789 has 2 divisors, whose sum is σ = 86498168790. Its totient is φ = 86498168788.

The previous prime is 86498168737. The next prime is 86498168821. The reversal of 86498168789 is 98786189468.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86477164900 + 21003889 = 294070^2 + 4583^2 .

It is a cyclic number.

It is not a de Polignac number, because 86498168789 - 2¹² = 86498164693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86498168719) 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 as a sum of consecutive naturals, namely, 43249084394 + 43249084395.

It is an arithmetic number, because the mean of its divisors is an integer number (43249084395).

Almost surely, 2^86498168789 is an apocalyptic number.

It is an amenable number.

86498168789 is a deficient number, since it is larger than the sum of its proper divisors (1).

86498168789 is an equidigital number, since it uses as much as digits as its factorization.

86498168789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 334430208, while the sum is 74.

The spelling of 86498168789 in words is "eighty-six billion, four hundred ninety-eight million, one hundred sixty-eight thousand, seven hundred eighty-nine".