4289968858121 has 2 divisors, whose sum is σ = 4289968858122. Its totient is φ = 4289968858120.

The previous prime is 4289968858099. The next prime is 4289968858129. The reversal of 4289968858121 is 1218588699824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3320452928521 + 969515929600 = 1822211^2 + 984640^2 .

It is a cyclic number.

It is not a de Polignac number, because 4289968858121 - 2⁶ = 4289968858057 is a prime.

It is not a weakly prime, because it can be changed into another prime (4289968858129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2144984429060 + 2144984429061.

It is an arithmetic number, because the mean of its divisors is an integer number (2144984429061).

Almost surely, 2^{4289968858121} is an apocalyptic number.

It is an amenable number.

4289968858121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4289968858121 is an equidigital number, since it uses as much as digits as its factorization.

4289968858121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 159252480, while the sum is 71.

The spelling of 4289968858121 in words is "four trillion, two hundred eighty-nine billion, nine hundred sixty-eight million, eight hundred fifty-eight thousand, one hundred twenty-one".