4961812897 has 2 divisors, whose sum is σ = 4961812898. Its totient is φ = 4961812896.

The previous prime is 4961812859. The next prime is 4961812901. The reversal of 4961812897 is 7982181694.

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., 3646227456 + 1315585441 = 60384^2 + 36271^2 .

It is a cyclic number.

It is not a de Polignac number, because 4961812897 - 2¹⁹ = 4961288609 is a prime.

It is not a weakly prime, because it can be changed into another prime (4961812837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2480906448 + 2480906449.

It is an arithmetic number, because the mean of its divisors is an integer number (2480906449).

Almost surely, 2^4961812897 is an apocalyptic number.

It is an amenable number.

4961812897 is a deficient number, since it is larger than the sum of its proper divisors (1).

4961812897 is an equidigital number, since it uses as much as digits as its factorization.

4961812897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 55.

The square root of 4961812897 is about 70440.1369745971. The cubic root of 4961812897 is about 1705.6115483247.

The spelling of 4961812897 in words is "four billion, nine hundred sixty-one million, eight hundred twelve thousand, eight hundred ninety-seven".