2628172747 has 2 divisors, whose sum is σ = 2628172748. Its totient is φ = 2628172746.

The previous prime is 2628172741. The next prime is 2628172819. The reversal of 2628172747 is 7472718262.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2628172747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2628172697 and 2628172706.

It is not a weakly prime, because it can be changed into another prime (2628172741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314086373 + 1314086374.

It is an arithmetic number, because the mean of its divisors is an integer number (1314086374).

Almost surely, 2^2628172747 is an apocalyptic number.

2628172747 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628172747 is an equidigital number, since it uses as much as digits as its factorization.

2628172747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 526848, while the sum is 46.

The square root of 2628172747 is about 51265.7073198059. The cubic root of 2628172747 is about 1380.0176338501.

The spelling of 2628172747 in words is "two billion, six hundred twenty-eight million, one hundred seventy-two thousand, seven hundred forty-seven".