4378790961 has 8 divisors (see below), whose sum is σ = 6487097760. Its totient is φ = 2919193956.

The previous prime is 4378790959. The next prime is 4378790993. The reversal of 4378790961 is 1690978734.

It is a happy number.

4378790961 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4378790961 - 2¹ = 4378790959 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4378790898 and 4378790907.

It is not an unprimeable number, because it can be changed into a prime (4378794961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81088695 + ... + 81088748.

It is an arithmetic number, because the mean of its divisors is an integer number (810887220).

Almost surely, 2^4378790961 is an apocalyptic number.

It is an amenable number.

4378790961 is a deficient number, since it is larger than the sum of its proper divisors (2108306799).

4378790961 is a wasteful number, since it uses less digits than its factorization.

4378790961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162177452 (or 162177446 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The square root of 4378790961 is about 66172.4335429792. The cubic root of 4378790961 is about 1636.0054181357.

The spelling of 4378790961 in words is "four billion, three hundred seventy-eight million, seven hundred ninety thousand, nine hundred sixty-one".