6045043721 has 2 divisors, whose sum is σ = 6045043722. Its totient is φ = 6045043720.

The previous prime is 6045043661. The next prime is 6045043727. The reversal of 6045043721 is 1273405406.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3977068096 + 2067975625 = 63064^2 + 45475^2 .

It is a cyclic number.

It is not a de Polignac number, because 6045043721 - 2¹⁰ = 6045042697 is a prime.

It is not a weakly prime, because it can be changed into another prime (6045043727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3022521860 + 3022521861.

It is an arithmetic number, because the mean of its divisors is an integer number (3022521861).

Almost surely, 2^6045043721 is an apocalyptic number.

It is an amenable number.

6045043721 is a deficient number, since it is larger than the sum of its proper divisors (1).

6045043721 is an equidigital number, since it uses as much as digits as its factorization.

6045043721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 6045043721 is about 77749.8792346329. The cubic root of 6045043721 is about 1821.6564761390.

The spelling of 6045043721 in words is "six billion, forty-five million, forty-three thousand, seven hundred twenty-one".