2272945747 has 4 divisors (see below), whose sum is σ = 2406648456. Its totient is φ = 2139243040.

The previous prime is 2272945733. The next prime is 2272945769. The reversal of 2272945747 is 7475492722.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2272945747 is a prime.

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 2272945747.

It is not an unprimeable number, because it can be changed into a prime (2272945777) 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, 66851329 + ... + 66851362.

It is an arithmetic number, because the mean of its divisors is an integer number (601662114).

Almost surely, 2^2272945747 is an apocalyptic number.

2272945747 is a deficient number, since it is larger than the sum of its proper divisors (133702709).

2272945747 is a wasteful number, since it uses less digits than its factorization.

2272945747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133702708.

The product of its digits is 1975680, while the sum is 49.

The square root of 2272945747 is about 47675.4207847188. The cubic root of 2272945747 is about 1314.8100747839.

The spelling of 2272945747 in words is "two billion, two hundred seventy-two million, nine hundred forty-five thousand, seven hundred forty-seven".