2628748717 has 12 divisors (see below), whose sum is σ = 3109764960. Its totient is φ = 2215020696.

The previous prime is 2628748699. The next prime is 2628748763. The reversal of 2628748717 is 7178478262.

It is a de Polignac number, because none of the positive numbers 2^k-2628748717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2628748817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 451753 + ... + 457534.

It is an arithmetic number, because the mean of its divisors is an integer number (259147080).

Almost surely, 2^2628748717 is an apocalyptic number.

It is an amenable number.

2628748717 is a deficient number, since it is larger than the sum of its proper divisors (481016243).

2628748717 is an equidigital number, since it uses as much as digits as its factorization.

2628748717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909360 (or 909353 counting only the distinct ones).

The product of its digits is 2107392, while the sum is 52.

The square root of 2628748717 is about 51271.3245099051. The cubic root of 2628748717 is about 1380.1184378150.

The spelling of 2628748717 in words is "two billion, six hundred twenty-eight million, seven hundred forty-eight thousand, seven hundred seventeen".