8446374121 has 2 divisors, whose sum is σ = 8446374122. Its totient is φ = 8446374120.

The previous prime is 8446374071. The next prime is 8446374127. The reversal of 8446374121 is 1214736448.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7225850025 + 1220524096 = 85005^2 + 34936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8446374121 is a prime.

It is not a weakly prime, because it can be changed into another prime (8446374127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4223187060 + 4223187061.

It is an arithmetic number, because the mean of its divisors is an integer number (4223187061).

Almost surely, 2^8446374121 is an apocalyptic number.

It is an amenable number.

8446374121 is a deficient number, since it is larger than the sum of its proper divisors (1).

8446374121 is an equidigital number, since it uses as much as digits as its factorization.

8446374121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 40.

The square root of 8446374121 is about 91904.1572563505. The cubic root of 8446374121 is about 2036.5266829780.

The spelling of 8446374121 in words is "eight billion, four hundred forty-six million, three hundred seventy-four thousand, one hundred twenty-one".