7503385345 has 4 divisors (see below), whose sum is σ = 9004062420. Its totient is φ = 6002708272.

The previous prime is 7503385333. The next prime is 7503385349. The reversal of 7503385345 is 5435833057.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5435833057 = 2129 ⋅2553233.

It can be written as a sum of positive squares in 2 ways, for example, as 1030217409 + 6473167936 = 32097^2 + 80456^2 .

It is a cyclic number.

It is not a de Polignac number, because 7503385345 - 2¹¹ = 7503383297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7503385349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750338530 + ... + 750338539.

It is an arithmetic number, because the mean of its divisors is an integer number (2251015605).

Almost surely, 2^7503385345 is an apocalyptic number.

It is an amenable number.

7503385345 is a deficient number, since it is larger than the sum of its proper divisors (1500677075).

7503385345 is a wasteful number, since it uses less digits than its factorization.

7503385345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500677074.

The product of its (nonzero) digits is 756000, while the sum is 43.

The square root of 7503385345 is about 86622.0834718261. The cubic root of 7503385345 is about 1957.7282913405.

The spelling of 7503385345 in words is "seven billion, five hundred three million, three hundred eighty-five thousand, three hundred forty-five".