5791721633 has 2 divisors, whose sum is σ = 5791721634. Its totient is φ = 5791721632.

The previous prime is 5791721591. The next prime is 5791721641. The reversal of 5791721633 is 3361271975.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4205133409 + 1586588224 = 64847^2 + 39832^2 .

It is a cyclic number.

It is not a de Polignac number, because 5791721633 - 2¹² = 5791717537 is a prime.

It is not a weakly prime, because it can be changed into another prime (5791721693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2895860816 + 2895860817.

It is an arithmetic number, because the mean of its divisors is an integer number (2895860817).

Almost surely, 2^5791721633 is an apocalyptic number.

It is an amenable number.

5791721633 is a deficient number, since it is larger than the sum of its proper divisors (1).

5791721633 is an equidigital number, since it uses as much as digits as its factorization.

5791721633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 44.

The square root of 5791721633 is about 76103.3615092001. The cubic root of 5791721633 is about 1795.8465585227.

The spelling of 5791721633 in words is "five billion, seven hundred ninety-one million, seven hundred twenty-one thousand, six hundred thirty-three".