4778422907 has 2 divisors, whose sum is σ = 4778422908. Its totient is φ = 4778422906.

The previous prime is 4778422903. The next prime is 4778422927. The reversal of 4778422907 is 7092248774.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4778422907 - 2² = 4778422903 is a prime.

It is not a weakly prime, because it can be changed into another prime (4778422903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2389211453 + 2389211454.

It is an arithmetic number, because the mean of its divisors is an integer number (2389211454).

Almost surely, 2^4778422907 is an apocalyptic number.

4778422907 is a deficient number, since it is larger than the sum of its proper divisors (1).

4778422907 is an equidigital number, since it uses as much as digits as its factorization.

4778422907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1580544, while the sum is 50.

The square root of 4778422907 is about 69126.1376542911. The cubic root of 4778422907 is about 1684.3339191241. Note that the first 3 decimals are identical.

The spelling of 4778422907 in words is "four billion, seven hundred seventy-eight million, four hundred twenty-two thousand, nine hundred seven".