2257726613 has 2 divisors, whose sum is σ = 2257726614. Its totient is φ = 2257726612.

The previous prime is 2257726579. The next prime is 2257726673. The reversal of 2257726613 is 3166277522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2206932484 + 50794129 = 46978^2 + 7127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2257726613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2257726673) 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, 1128863306 + 1128863307.

It is an arithmetic number, because the mean of its divisors is an integer number (1128863307).

Almost surely, 2^2257726613 is an apocalyptic number.

It is an amenable number.

2257726613 is a deficient number, since it is larger than the sum of its proper divisors (1).

2257726613 is an equidigital number, since it uses as much as digits as its factorization.

2257726613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 2257726613 is about 47515.5407524738. The cubic root of 2257726613 is about 1311.8689429883.

The spelling of 2257726613 in words is "two billion, two hundred fifty-seven million, seven hundred twenty-six thousand, six hundred thirteen".