7443059989 has 4 divisors (see below), whose sum is σ = 7699717260. Its totient is φ = 7186402720.

The previous prime is 7443059977. The next prime is 7443059993. The reversal of 7443059989 is 9899503447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9899503447 = 2011 ⋅4922677.

It can be written as a sum of positive squares in 2 ways, for example, as 6110079889 + 1332980100 = 78167^2 + 36510^2 .

It is a cyclic number.

It is not a de Polignac number, because 7443059989 - 2⁵ = 7443059957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7443059909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128328592 + ... + 128328649.

It is an arithmetic number, because the mean of its divisors is an integer number (1924929315).

Almost surely, 2^7443059989 is an apocalyptic number.

It is an amenable number.

7443059989 is a deficient number, since it is larger than the sum of its proper divisors (256657271).

7443059989 is a wasteful number, since it uses less digits than its factorization.

7443059989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256657270.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The square root of 7443059989 is about 86273.1707369099. The cubic root of 7443059989 is about 1952.4676180156.

The spelling of 7443059989 in words is "seven billion, four hundred forty-three million, fifty-nine thousand, nine hundred eighty-nine".