7367040721 has 2 divisors, whose sum is σ = 7367040722. Its totient is φ = 7367040720.

The previous prime is 7367040673. The next prime is 7367040749. The reversal of 7367040721 is 1270407637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6111330625 + 1255710096 = 78175^2 + 35436^2 .

It is a cyclic number.

It is not a de Polignac number, because 7367040721 - 2⁹ = 7367040209 is a prime.

It is not a weakly prime, because it can be changed into another prime (7367046721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3683520360 + 3683520361.

It is an arithmetic number, because the mean of its divisors is an integer number (3683520361).

Almost surely, 2^7367040721 is an apocalyptic number.

It is an amenable number.

7367040721 is a deficient number, since it is larger than the sum of its proper divisors (1).

7367040721 is an equidigital number, since it uses as much as digits as its factorization.

7367040721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 7367040721 is about 85831.4669628802. The cubic root of 7367040721 is about 1945.7977198450.

The spelling of 7367040721 in words is "seven billion, three hundred sixty-seven million, forty thousand, seven hundred twenty-one".