448178108197 has 2 divisors, whose sum is σ = 448178108198. Its totient is φ = 448178108196.

The previous prime is 448178108179. The next prime is 448178108233. The reversal of 448178108197 is 791801871844.

Together with previous prime (448178108179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446483221636 + 1694886561 = 668194^2 + 41169^2 .

It is a cyclic number.

It is not a de Polignac number, because 448178108197 - 2¹¹ = 448178106149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (448178108797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224089054098 + 224089054099.

It is an arithmetic number, because the mean of its divisors is an integer number (224089054099).

Almost surely, 2^448178108197 is an apocalyptic number.

It is an amenable number.

448178108197 is a deficient number, since it is larger than the sum of its proper divisors (1).

448178108197 is an equidigital number, since it uses as much as digits as its factorization.

448178108197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3612672, while the sum is 58.

The spelling of 448178108197 in words is "four hundred forty-eight billion, one hundred seventy-eight million, one hundred eight thousand, one hundred ninety-seven".