4138562789 has 2 divisors, whose sum is σ = 4138562790. Its totient is φ = 4138562788.

The previous prime is 4138562783. The next prime is 4138562803. The reversal of 4138562789 is 9872658314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3965850625 + 172712164 = 62975^2 + 13142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4138562789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4138562789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4138562783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069281394 + 2069281395.

It is an arithmetic number, because the mean of its divisors is an integer number (2069281395).

Almost surely, 2^4138562789 is an apocalyptic number.

It is an amenable number.

4138562789 is a deficient number, since it is larger than the sum of its proper divisors (1).

4138562789 is an equidigital number, since it uses as much as digits as its factorization.

4138562789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 53.

The square root of 4138562789 is about 64331.6624143975. The cubic root of 4138562789 is about 1605.5229435660.

The spelling of 4138562789 in words is "four billion, one hundred thirty-eight million, five hundred sixty-two thousand, seven hundred eighty-nine".