4504999945 has 4 divisors (see below), whose sum is σ = 5405999940. Its totient is φ = 3603999952.

The previous prime is 4504999901. The next prime is 4504999991. The reversal of 4504999945 is 5499994054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1310150416 + 3194849529 = 36196^2 + 56523^2 .

It is a cyclic number.

It is not a de Polignac number, because 4504999945 - 2⁷ = 4504999817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4504999945.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 450499990 + ... + 450499999.

It is an arithmetic number, because the mean of its divisors is an integer number (1351499985).

Almost surely, 2^4504999945 is an apocalyptic number.

It is an amenable number.

4504999945 is a deficient number, since it is larger than the sum of its proper divisors (900999995).

4504999945 is an equidigital number, since it uses as much as digits as its factorization.

4504999945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900999994.

The product of its (nonzero) digits is 10497600, while the sum is 58.

The square root of 4504999945 is about 67119.2963684811. The cubic root of 4504999945 is about 1651.5748594053.

The spelling of 4504999945 in words is "four billion, five hundred four million, nine hundred ninety-nine thousand, nine hundred forty-five".