4424778973 has 2 divisors, whose sum is σ = 4424778974. Its totient is φ = 4424778972.

The previous prime is 4424778971. The next prime is 4424779067. The reversal of 4424778973 is 3798774244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3999677049 + 425101924 = 63243^2 + 20618^2 .

It is a cyclic number.

It is not a de Polignac number, because 4424778973 - 2¹ = 4424778971 is a prime.

Together with 4424778971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4424778971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2212389486 + 2212389487.

It is an arithmetic number, because the mean of its divisors is an integer number (2212389487).

Almost surely, 2^4424778973 is an apocalyptic number.

It is an amenable number.

4424778973 is a deficient number, since it is larger than the sum of its proper divisors (1).

4424778973 is an equidigital number, since it uses as much as digits as its factorization.

4424778973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9483264, while the sum is 55.

The square root of 4424778973 is about 66519.0121168377. The cubic root of 4424778973 is about 1641.7128363125.

The spelling of 4424778973 in words is "four billion, four hundred twenty-four million, seven hundred seventy-eight thousand, nine hundred seventy-three".