2628709253 has 2 divisors, whose sum is σ = 2628709254. Its totient is φ = 2628709252.

The previous prime is 2628709231. The next prime is 2628709267. The reversal of 2628709253 is 3529078262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1916513284 + 712195969 = 43778^2 + 26687^2 .

It is a cyclic number.

It is not a de Polignac number, because 2628709253 - 2²⁰ = 2627660677 is a prime.

It is a super-2 number, since 2×2628709253² = 13820224673615636018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2628759253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314354626 + 1314354627.

It is an arithmetic number, because the mean of its divisors is an integer number (1314354627).

Almost surely, 2^2628709253 is an apocalyptic number.

It is an amenable number.

2628709253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628709253 is an equidigital number, since it uses as much as digits as its factorization.

2628709253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 2628709253 is about 51270.9396539599. The cubic root of 2628709253 is about 1380.1115314535. Note that the first 3 decimals are identical.

The spelling of 2628709253 in words is "two billion, six hundred twenty-eight million, seven hundred nine thousand, two hundred fifty-three".