4379344639 has 2 divisors, whose sum is σ = 4379344640. Its totient is φ = 4379344638.

The previous prime is 4379344631. The next prime is 4379344649. The reversal of 4379344639 is 9364439734.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4379344639 - 2³ = 4379344631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4379344631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2189672319 + 2189672320.

It is an arithmetic number, because the mean of its divisors is an integer number (2189672320).

Almost surely, 2^4379344639 is an apocalyptic number.

4379344639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4379344639 is an equidigital number, since it uses as much as digits as its factorization.

4379344639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 52.

The square root of 4379344639 is about 66176.6170108445. The cubic root of 4379344639 is about 1636.0743703526.

The spelling of 4379344639 in words is "four billion, three hundred seventy-nine million, three hundred forty-four thousand, six hundred thirty-nine".