4473751545 has 12 divisors (see below), whose sum is σ = 7754502756. Its totient is φ = 2386000800.

The previous prime is 4473751507. The next prime is 4473751559. The reversal of 4473751545 is 5451573744.

It can be written as a sum of positive squares in 2 ways, for example, as 3234993129 + 1238758416 = 56877^2 + 35196^2 .

It is not a de Polignac number, because 4473751545 - 2⁷ = 4473751417 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 99416701 = 4473751545 / (4 + 4 + 7 + 3 + 7 + 5 + 1 + 5 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 4473751545.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49708306 + ... + 49708395.

It is an arithmetic number, because the mean of its divisors is an integer number (646208563).

Almost surely, 2^4473751545 is an apocalyptic number.

4473751545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4473751545 is a deficient number, since it is larger than the sum of its proper divisors (3280751211).

4473751545 is a wasteful number, since it uses less digits than its factorization.

4473751545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99416712 (or 99416709 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 45.

The square root of 4473751545 is about 66886.1087595922. The cubic root of 4473751545 is about 1647.7473447045.

The spelling of 4473751545 in words is "four billion, four hundred seventy-three million, seven hundred fifty-one thousand, five hundred forty-five".