7530873389 has 6 divisors (see below), whose sum is σ = 8154732906. Its totient is φ = 6951575280.

The previous prime is 7530873359. The next prime is 7530873409. The reversal of 7530873389 is 9833780357.

It can be written as a sum of positive squares in 3 ways, for example, as 142611364 + 7388262025 = 11942^2 + 85955^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7530873389 is a prime.

It is a super-2 number, since 2×7530873389² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7530873389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7530873359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22280522 + ... + 22280859.

It is an arithmetic number, because the mean of its divisors is an integer number (1359122151).

Almost surely, 2^7530873389 is an apocalyptic number.

It is an amenable number.

7530873389 is a deficient number, since it is larger than the sum of its proper divisors (623859517).

7530873389 is a wasteful number, since it uses less digits than its factorization.

7530873389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44561407 (or 44561394 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 53.

The square root of 7530873389 is about 86780.6049126186. The cubic root of 7530873389 is about 1960.1160375734.

The spelling of 7530873389 in words is "seven billion, five hundred thirty million, eight hundred seventy-three thousand, three hundred eighty-nine".