7443625361 has 4 divisors (see below), whose sum is σ = 7517324724. Its totient is φ = 7369926000.

The previous prime is 7443625349. The next prime is 7443625363. The reversal of 7443625361 is 1635263447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1635263447 = 9791 ⋅167017.

It can be written as a sum of positive squares in 2 ways, for example, as 7050792961 + 392832400 = 83969^2 + 19820^2 .

It is a cyclic number.

It is not a de Polignac number, because 7443625361 - 2⁶ = 7443625297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7443625363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36849530 + ... + 36849731.

It is an arithmetic number, because the mean of its divisors is an integer number (1879331181).

Almost surely, 2^7443625361 is an apocalyptic number.

It is an amenable number.

7443625361 is a deficient number, since it is larger than the sum of its proper divisors (73699363).

7443625361 is a wasteful number, since it uses less digits than its factorization.

7443625361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73699362.

The product of its digits is 362880, while the sum is 41.

The square root of 7443625361 is about 86276.4473132732. The cubic root of 7443625361 is about 1952.5170529960.

The spelling of 7443625361 in words is "seven billion, four hundred forty-three million, six hundred twenty-five thousand, three hundred sixty-one".