2628505097 has 6 divisors (see below), whose sum is σ = 2716031754. Its totient is φ = 2543713680.

The previous prime is 2628505081. The next prime is 2628505111. The reversal of 2628505097 is 7905058262.

2628505097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2208624016 + 419881081 = 46996^2 + 20491^2 .

It is not a de Polignac number, because 2628505097 - 2⁴ = 2628505081 is a prime.

It is a super-3 number, since 3×2628505097³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2628504097) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1366628 + ... + 1368549.

It is an arithmetic number, because the mean of its divisors is an integer number (452671959).

Almost surely, 2^2628505097 is an apocalyptic number.

It is an amenable number.

2628505097 is a deficient number, since it is larger than the sum of its proper divisors (87526657).

2628505097 is an equidigital number, since it uses as much as digits as its factorization.

2628505097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735239 (or 2735208 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 2628505097 is about 51268.9486629090. The cubic root of 2628505097 is about 1380.0758022144.

The spelling of 2628505097 in words is "two billion, six hundred twenty-eight million, five hundred five thousand, ninety-seven".