7346512721 has 2 divisors, whose sum is σ = 7346512722. Its totient is φ = 7346512720.

The previous prime is 7346512709. The next prime is 7346512727. The reversal of 7346512721 is 1272156437.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4591417600 + 2755095121 = 67760^2 + 52489^2 .

It is a cyclic number.

It is not a de Polignac number, because 7346512721 - 2¹⁴ = 7346496337 is a prime.

It is not a weakly prime, because it can be changed into another prime (7346512727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3673256360 + 3673256361.

It is an arithmetic number, because the mean of its divisors is an integer number (3673256361).

Almost surely, 2^7346512721 is an apocalyptic number.

It is an amenable number.

7346512721 is a deficient number, since it is larger than the sum of its proper divisors (1).

7346512721 is an equidigital number, since it uses as much as digits as its factorization.

7346512721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 38.

The square root of 7346512721 is about 85711.8003602771. The cubic root of 7346512721 is about 1943.9887396008.

The spelling of 7346512721 in words is "seven billion, three hundred forty-six million, five hundred twelve thousand, seven hundred twenty-one".