2628533917 has 2 divisors, whose sum is σ = 2628533918. Its totient is φ = 2628533916.

The previous prime is 2628533857. The next prime is 2628533933. The reversal of 2628533917 is 7193358262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2020862116 + 607671801 = 44954^2 + 24651^2 .

It is a cyclic number.

It is not a de Polignac number, because 2628533917 - 2¹¹ = 2628531869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2628533417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314266958 + 1314266959.

It is an arithmetic number, because the mean of its divisors is an integer number (1314266959).

Almost surely, 2^2628533917 is an apocalyptic number.

It is an amenable number.

2628533917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628533917 is an equidigital number, since it uses as much as digits as its factorization.

2628533917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The square root of 2628533917 is about 51269.2297289515. The cubic root of 2628533917 is about 1380.0808461003.

The spelling of 2628533917 in words is "two billion, six hundred twenty-eight million, five hundred thirty-three thousand, nine hundred seventeen".