4139097643 has 2 divisors, whose sum is σ = 4139097644. Its totient is φ = 4139097642.

The previous prime is 4139097637. The next prime is 4139097647. The reversal of 4139097643 is 3467909314.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4139097643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4139097593 and 4139097602.

It is not a weakly prime, because it can be changed into another prime (4139097647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069548821 + 2069548822.

It is an arithmetic number, because the mean of its divisors is an integer number (2069548822).

Almost surely, 2^4139097643 is an apocalyptic number.

4139097643 is a deficient number, since it is larger than the sum of its proper divisors (1).

4139097643 is an equidigital number, since it uses as much as digits as its factorization.

4139097643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 4139097643 is about 64335.8192844391. The cubic root of 4139097643 is about 1605.5921047235.

The spelling of 4139097643 in words is "four billion, one hundred thirty-nine million, ninety-seven thousand, six hundred forty-three".