86451122473 has 2 divisors, whose sum is σ = 86451122474. Its totient is φ = 86451122472.

The previous prime is 86451122437. The next prime is 86451122477. The reversal of 86451122473 is 37422115468.

Together with previous prime (86451122437) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70502463529 + 15948658944 = 265523^2 + 126288^2 .

It is a cyclic number.

It is not a de Polignac number, because 86451122473 - 2²¹ = 86449025321 is a prime.

It is not a weakly prime, because it can be changed into another prime (86451122477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43225561236 + 43225561237.

It is an arithmetic number, because the mean of its divisors is an integer number (43225561237).

Almost surely, 2^86451122473 is an apocalyptic number.

It is an amenable number.

86451122473 is a deficient number, since it is larger than the sum of its proper divisors (1).

86451122473 is an equidigital number, since it uses as much as digits as its factorization.

86451122473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 43.

The spelling of 86451122473 in words is "eighty-six billion, four hundred fifty-one million, one hundred twenty-two thousand, four hundred seventy-three".