4550423708861 has 2 divisors, whose sum is σ = 4550423708862. Its totient is φ = 4550423708860.

The previous prime is 4550423708851. The next prime is 4550423708881. The reversal of 4550423708861 is 1688073240554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4437211647961 + 113212060900 = 2106469^2 + 336470^2 .

It is a cyclic number.

It is not a de Polignac number, because 4550423708861 - 2³⁰ = 4549349967037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4550423708821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2275211854430 + 2275211854431.

It is an arithmetic number, because the mean of its divisors is an integer number (2275211854431).

Almost surely, 2^{4550423708861} is an apocalyptic number.

It is an amenable number.

4550423708861 is a deficient number, since it is larger than the sum of its proper divisors (1).

4550423708861 is an equidigital number, since it uses as much as digits as its factorization.

4550423708861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 4550423708861 in words is "four trillion, five hundred fifty billion, four hundred twenty-three million, seven hundred eight thousand, eight hundred sixty-one".