4539491279 has 2 divisors, whose sum is σ = 4539491280. Its totient is φ = 4539491278.

The previous prime is 4539491269. The next prime is 4539491303. The reversal of 4539491279 is 9721949354.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4539491279 - 2⁸ = 4539491023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4539491279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4539491219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2269745639 + 2269745640.

It is an arithmetic number, because the mean of its divisors is an integer number (2269745640).

Almost surely, 2^4539491279 is an apocalyptic number.

4539491279 is a deficient number, since it is larger than the sum of its proper divisors (1).

4539491279 is an equidigital number, since it uses as much as digits as its factorization.

4539491279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 53.

The square root of 4539491279 is about 67375.7469643194. The cubic root of 4539491279 is about 1655.7790959459.

The spelling of 4539491279 in words is "four billion, five hundred thirty-nine million, four hundred ninety-one thousand, two hundred seventy-nine".