4538919197 has 2 divisors, whose sum is σ = 4538919198. Its totient is φ = 4538919196.

The previous prime is 4538919191. The next prime is 4538919247. The reversal of 4538919197 is 7919198354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3694086841 + 844832356 = 60779^2 + 29066^2 .

It is a cyclic number.

It is not a de Polignac number, because 4538919197 - 2⁴ = 4538919181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4538919191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2269459598 + 2269459599.

It is an arithmetic number, because the mean of its divisors is an integer number (2269459599).

Almost surely, 2^4538919197 is an apocalyptic number.

It is an amenable number.

4538919197 is a deficient number, since it is larger than the sum of its proper divisors (1).

4538919197 is an equidigital number, since it uses as much as digits as its factorization.

4538919197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 56.

The square root of 4538919197 is about 67371.5013711287. The cubic root of 4538919197 is about 1655.7095374019.

The spelling of 4538919197 in words is "four billion, five hundred thirty-eight million, nine hundred nineteen thousand, one hundred ninety-seven".