4407768961 has 2 divisors, whose sum is σ = 4407768962. Its totient is φ = 4407768960.

The previous prime is 4407768947. The next prime is 4407768971. The reversal of 4407768961 is 1698677044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3455676225 + 952092736 = 58785^2 + 30856^2 .

It is a cyclic number.

It is not a de Polignac number, because 4407768961 - 2⁵ = 4407768929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4407768899 and 4407768908.

It is not a weakly prime, because it can be changed into another prime (4407768971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2203884480 + 2203884481.

It is an arithmetic number, because the mean of its divisors is an integer number (2203884481).

Almost surely, 2^4407768961 is an apocalyptic number.

It is an amenable number.

4407768961 is a deficient number, since it is larger than the sum of its proper divisors (1).

4407768961 is an equidigital number, since it uses as much as digits as its factorization.

4407768961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 4407768961 is about 66391.0307270493. The cubic root of 4407768961 is about 1639.6064097372.

The spelling of 4407768961 in words is "four billion, four hundred seven million, seven hundred sixty-eight thousand, nine hundred sixty-one".