7521466545 has 32 divisors (see below), whose sum is σ = 13375756800. Its totient is φ = 4010170752.

The previous prime is 7521466529. The next prime is 7521466567. The reversal of 7521466545 is 5456641257.

It is not a de Polignac number, because 7521466545 - 2⁴ = 7521466529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7521466545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 543016 + ... + 556694.

It is an arithmetic number, because the mean of its divisors is an integer number (417992400).

Almost surely, 2^7521466545 is an apocalyptic number.

It is an amenable number.

7521466545 is a deficient number, since it is larger than the sum of its proper divisors (5854290255).

7521466545 is a wasteful number, since it uses less digits than its factorization.

7521466545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17766 (or 17760 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The square root of 7521466545 is about 86726.3889770582. The cubic root of 7521466545 is about 1959.2995679392.

The spelling of 7521466545 in words is "seven billion, five hundred twenty-one million, four hundred sixty-six thousand, five hundred forty-five".