5421731641 has 2 divisors, whose sum is σ = 5421731642. Its totient is φ = 5421731640.

The previous prime is 5421731629. The next prime is 5421731687. The reversal of 5421731641 is 1461371245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4708841641 + 712890000 = 68621^2 + 26700^2 .

It is a cyclic number.

It is not a de Polignac number, because 5421731641 - 2⁹ = 5421731129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5421731597 and 5421731606.

It is not a weakly prime, because it can be changed into another prime (5421731621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2710865820 + 2710865821.

It is an arithmetic number, because the mean of its divisors is an integer number (2710865821).

Almost surely, 2^5421731641 is an apocalyptic number.

It is an amenable number.

5421731641 is a deficient number, since it is larger than the sum of its proper divisors (1).

5421731641 is an equidigital number, since it uses as much as digits as its factorization.

5421731641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 5421731641 is about 73632.4089039602. The cubic root of 5421731641 is about 1756.7609633922.

It can be divided in two parts, 54217 and 31641, that added together give a palindrome (85858).

The spelling of 5421731641 in words is "five billion, four hundred twenty-one million, seven hundred thirty-one thousand, six hundred forty-one".