4189964477 has 2 divisors, whose sum is σ = 4189964478. Its totient is φ = 4189964476.

The previous prime is 4189964423. The next prime is 4189964479. The reversal of 4189964477 is 7744699814.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2443226041 + 1746738436 = 49429^2 + 41794^2 .

It is a cyclic number.

It is not a de Polignac number, because 4189964477 - 2⁸ = 4189964221 is a prime.

Together with 4189964479, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4189964479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2094982238 + 2094982239.

It is an arithmetic number, because the mean of its divisors is an integer number (2094982239).

Almost surely, 2^4189964477 is an apocalyptic number.

It is an amenable number.

4189964477 is a deficient number, since it is larger than the sum of its proper divisors (1).

4189964477 is an equidigital number, since it uses as much as digits as its factorization.

4189964477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12192768, while the sum is 59.

The square root of 4189964477 is about 64729.9349373997. The cubic root of 4189964477 is about 1612.1425735200.

The spelling of 4189964477 in words is "four billion, one hundred eighty-nine million, nine hundred sixty-four thousand, four hundred seventy-seven".