86224225691 has 2 divisors, whose sum is σ = 86224225692. Its totient is φ = 86224225690.

The previous prime is 86224225651. The next prime is 86224225729. The reversal of 86224225691 is 19652242268.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86224225691 is a prime.

It is not a weakly prime, because it can be changed into another prime (86224225621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43112112845 + 43112112846.

It is an arithmetic number, because the mean of its divisors is an integer number (43112112846).

Almost surely, 2^86224225691 is an apocalyptic number.

86224225691 is a deficient number, since it is larger than the sum of its proper divisors (1).

86224225691 is an equidigital number, since it uses as much as digits as its factorization.

86224225691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 47.

The spelling of 86224225691 in words is "eighty-six billion, two hundred twenty-four million, two hundred twenty-five thousand, six hundred ninety-one".