1648512176897 has 2 divisors, whose sum is σ = 1648512176898. Its totient is φ = 1648512176896.

The previous prime is 1648512176893. The next prime is 1648512176923. The reversal of 1648512176897 is 7986712158461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1014953487601 + 633558689296 = 1007449^2 + 795964^2 .

It is a cyclic number.

It is not a de Polignac number, because 1648512176897 - 2² = 1648512176893 is a prime.

It is not a weakly prime, because it can be changed into another prime (1648512176893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 824256088448 + 824256088449.

It is an arithmetic number, because the mean of its divisors is an integer number (824256088449).

Almost surely, 2^{1648512176897} is an apocalyptic number.

It is an amenable number.

1648512176897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1648512176897 is an equidigital number, since it uses as much as digits as its factorization.

1648512176897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40642560, while the sum is 65.

The spelling of 1648512176897 in words is "one trillion, six hundred forty-eight billion, five hundred twelve million, one hundred seventy-six thousand, eight hundred ninety-seven".