4194481481 has 2 divisors, whose sum is σ = 4194481482. Its totient is φ = 4194481480.

The previous prime is 4194481433. The next prime is 4194481493. The reversal of 4194481481 is 1841844914.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4081165456 + 113316025 = 63884^2 + 10645^2 .

It is a cyclic number.

It is not a de Polignac number, because 4194481481 - 2¹⁰ = 4194480457 is a prime.

It is a super-2 number, since 2×4194481481² = 35187349788903906722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4194480481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2097240740 + 2097240741.

It is an arithmetic number, because the mean of its divisors is an integer number (2097240741).

Almost surely, 2^4194481481 is an apocalyptic number.

It is an amenable number.

4194481481 is a deficient number, since it is larger than the sum of its proper divisors (1).

4194481481 is an equidigital number, since it uses as much as digits as its factorization.

4194481481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147456, while the sum is 44.

The square root of 4194481481 is about 64764.8166908546. The cubic root of 4194481481 is about 1612.7216905384.

The spelling of 4194481481 in words is "four billion, one hundred ninety-four million, four hundred eighty-one thousand, four hundred eighty-one".