4158986509 has 2 divisors, whose sum is σ = 4158986510. Its totient is φ = 4158986508.

The previous prime is 4158986411. The next prime is 4158986519. The reversal of 4158986509 is 9056898514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3959555625 + 199430884 = 62925^2 + 14122^2 .

It is a cyclic number.

It is not a de Polignac number, because 4158986509 - 2¹⁵ = 4158953741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4158986509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4158986519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2079493254 + 2079493255.

It is an arithmetic number, because the mean of its divisors is an integer number (2079493255).

Almost surely, 2^4158986509 is an apocalyptic number.

It is an amenable number.

4158986509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4158986509 is an equidigital number, since it uses as much as digits as its factorization.

4158986509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3110400, while the sum is 55.

The square root of 4158986509 is about 64490.2047523498. The cubic root of 4158986509 is about 1608.1596848350.

The spelling of 4158986509 in words is "four billion, one hundred fifty-eight million, nine hundred eighty-six thousand, five hundred nine".