3557043689 has 2 divisors, whose sum is σ = 3557043690. Its totient is φ = 3557043688.

The previous prime is 3557043661. The next prime is 3557043781. The reversal of 3557043689 is 9863407553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1890771289 + 1666272400 = 43483^2 + 40820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3557043689 is a prime.

It is not a weakly prime, because it can be changed into another prime (3557043089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1778521844 + 1778521845.

It is an arithmetic number, because the mean of its divisors is an integer number (1778521845).

Almost surely, 2^3557043689 is an apocalyptic number.

It is an amenable number.

3557043689 is a deficient number, since it is larger than the sum of its proper divisors (1).

3557043689 is an equidigital number, since it uses as much as digits as its factorization.

3557043689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The square root of 3557043689 is about 59640.9564728803. The cubic root of 3557043689 is about 1526.4985629810.

The spelling of 3557043689 in words is "three billion, five hundred fifty-seven million, forty-three thousand, six hundred eighty-nine".