1026628613 has 2 divisors, whose sum is σ = 1026628614. Its totient is φ = 1026628612.

The previous prime is 1026628591. The next prime is 1026628633. The reversal of 1026628613 is 3168266201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1026113089 + 515524 = 32033^2 + 718^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026628613 - 2⁶ = 1026628549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1026628633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513314306 + 513314307.

It is an arithmetic number, because the mean of its divisors is an integer number (513314307).

Almost surely, 2^1026628613 is an apocalyptic number.

It is an amenable number.

1026628613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026628613 is an equidigital number, since it uses as much as digits as its factorization.

1026628613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1026628613 is about 32041.0457538452. The cubic root of 1026628613 is about 1008.7985625838.

The spelling of 1026628613 in words is "one billion, twenty-six million, six hundred twenty-eight thousand, six hundred thirteen".