4145984639 has 2 divisors, whose sum is σ = 4145984640. Its totient is φ = 4145984638.

The previous prime is 4145984627. The next prime is 4145984641. The reversal of 4145984639 is 9364895414.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4145984639 is a prime.

Together with 4145984641, 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 (4145984659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2072992319 + 2072992320.

It is an arithmetic number, because the mean of its divisors is an integer number (2072992320).

Almost surely, 2^4145984639 is an apocalyptic number.

4145984639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4145984639 is an equidigital number, since it uses as much as digits as its factorization.

4145984639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 53.

The square root of 4145984639 is about 64389.3208459291. The cubic root of 4145984639 is about 1606.4821198983.

The spelling of 4145984639 in words is "four billion, one hundred forty-five million, nine hundred eighty-four thousand, six hundred thirty-nine".