7645595729 has 2 divisors, whose sum is σ = 7645595730. Its totient is φ = 7645595728.

The previous prime is 7645595717. The next prime is 7645595731. The reversal of 7645595729 is 9275955467.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7153776400 + 491819329 = 84580^2 + 22177^2 .

It is an emirp because it is prime and its reverse (9275955467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7645595729 - 2²⁴ = 7628818513 is a prime.

It is a Sophie Germain prime.

Together with 7645595731, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7645595329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3822797864 + 3822797865.

It is an arithmetic number, because the mean of its divisors is an integer number (3822797865).

Almost surely, 2^7645595729 is an apocalyptic number.

It is an amenable number.

7645595729 is a deficient number, since it is larger than the sum of its proper divisors (1).

7645595729 is an equidigital number, since it uses as much as digits as its factorization.

7645595729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814000, while the sum is 59.

The square root of 7645595729 is about 87439.0972563189. The cubic root of 7645595729 is about 1970.0191301706.

The spelling of 7645595729 in words is "seven billion, six hundred forty-five million, five hundred ninety-five thousand, seven hundred twenty-nine".