4051439459 has 2 divisors, whose sum is σ = 4051439460. Its totient is φ = 4051439458.

The previous prime is 4051439401. The next prime is 4051439471. The reversal of 4051439459 is 9549341504.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4051439459 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (4051439659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2025719729 + 2025719730.

It is an arithmetic number, because the mean of its divisors is an integer number (2025719730).

Almost surely, 2^4051439459 is an apocalyptic number.

4051439459 is a deficient number, since it is larger than the sum of its proper divisors (1).

4051439459 is an equidigital number, since it uses as much as digits as its factorization.

4051439459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 4051439459 is about 63650.9187600619. The cubic root of 4051439459 is about 1594.1766775089.

The spelling of 4051439459 in words is "four billion, fifty-one million, four hundred thirty-nine thousand, four hundred fifty-nine".