5738691661 has 2 divisors, whose sum is σ = 5738691662. Its totient is φ = 5738691660.

The previous prime is 5738691643. The next prime is 5738691667. The reversal of 5738691661 is 1661968375.

It is a happy number.

5738691661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5228157636 + 510534025 = 72306^2 + 22595^2 .

It is a cyclic number.

It is not a de Polignac number, because 5738691661 - 2⁷ = 5738691533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5738691599 and 5738691608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5738691667) 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, 2869345830 + 2869345831.

It is an arithmetic number, because the mean of its divisors is an integer number (2869345831).

Almost surely, 2^5738691661 is an apocalyptic number.

It is an amenable number.

5738691661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5738691661 is an equidigital number, since it uses as much as digits as its factorization.

5738691661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 52.

The square root of 5738691661 is about 75754.1527640564. The cubic root of 5738691661 is about 1790.3487206946.

The spelling of 5738691661 in words is "five billion, seven hundred thirty-eight million, six hundred ninety-one thousand, six hundred sixty-one".