4951551558049 has 2 divisors, whose sum is σ = 4951551558050. Its totient is φ = 4951551558048.

The previous prime is 4951551558047. The next prime is 4951551558067. The reversal of 4951551558049 is 9408551551594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4948555966225 + 2995591824 = 2224535^2 + 54732^2 .

It is a cyclic number.

It is not a de Polignac number, because 4951551558049 - 2¹ = 4951551558047 is a prime.

Together with 4951551558047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4951551558047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2475775779024 + 2475775779025.

It is an arithmetic number, because the mean of its divisors is an integer number (2475775779025).

Almost surely, 2^{4951551558049} is an apocalyptic number.

It is an amenable number.

4951551558049 is a deficient number, since it is larger than the sum of its proper divisors (1).

4951551558049 is an equidigital number, since it uses as much as digits as its factorization.

4951551558049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400000, while the sum is 61.

The spelling of 4951551558049 in words is "four trillion, nine hundred fifty-one billion, five hundred fifty-one million, five hundred fifty-eight thousand, forty-nine".