7415516609 has 2 divisors, whose sum is σ = 7415516610. Its totient is φ = 7415516608.

The previous prime is 7415516561. The next prime is 7415516639. The reversal of 7415516609 is 9066155147.

7415516609 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6292931584 + 1122585025 = 79328^2 + 33505^2 .

It is a cyclic number.

It is not a de Polignac number, because 7415516609 - 2¹⁶ = 7415451073 is a prime.

It is a super-3 number, since 3×7415516609³ (a number of 31 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7415516609.

It is not a weakly prime, because it can be changed into another prime (7415516639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3707758304 + 3707758305.

It is an arithmetic number, because the mean of its divisors is an integer number (3707758305).

Almost surely, 2^7415516609 is an apocalyptic number.

It is an amenable number.

7415516609 is a deficient number, since it is larger than the sum of its proper divisors (1).

7415516609 is an equidigital number, since it uses as much as digits as its factorization.

7415516609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 7415516609 is about 86113.3939001361. The cubic root of 7415516609 is about 1950.0562428661.

The spelling of 7415516609 in words is "seven billion, four hundred fifteen million, five hundred sixteen thousand, six hundred nine".