3156556489 has 2 divisors, whose sum is σ = 3156556490. Its totient is φ = 3156556488.

The previous prime is 3156556477. The next prime is 3156556517. The reversal of 3156556489 is 9846556513.

3156556489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2251028025 + 905528464 = 47445^2 + 30092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3156556489 is a prime.

It is not a weakly prime, because it can be changed into another prime (3156556189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1578278244 + 1578278245.

It is an arithmetic number, because the mean of its divisors is an integer number (1578278245).

Almost surely, 2^3156556489 is an apocalyptic number.

It is an amenable number.

3156556489 is a deficient number, since it is larger than the sum of its proper divisors (1).

3156556489 is an equidigital number, since it uses as much as digits as its factorization.

3156556489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888000, while the sum is 52.

The square root of 3156556489 is about 56183.2402856937. The cubic root of 3156556489 is about 1466.9135557922.

The spelling of 3156556489 in words is "three billion, one hundred fifty-six million, five hundred fifty-six thousand, four hundred eighty-nine".