1626568049 has 2 divisors, whose sum is σ = 1626568050. Its totient is φ = 1626568048.

The previous prime is 1626568043. The next prime is 1626568061. The reversal of 1626568049 is 9408656261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1008697600 + 617870449 = 31760^2 + 24857^2 .

It is a cyclic number.

It is not a de Polignac number, because 1626568049 - 2²⁸ = 1358132593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1626567994 and 1626568012.

It is not a weakly prime, because it can be changed into another prime (1626568043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813284024 + 813284025.

It is an arithmetic number, because the mean of its divisors is an integer number (813284025).

Almost surely, 2^1626568049 is an apocalyptic number.

It is an amenable number.

1626568049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1626568049 is an equidigital number, since it uses as much as digits as its factorization.

1626568049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 1626568049 is about 40330.7333060037. The cubic root of 1626568049 is about 1176.0453769589.

The spelling of 1626568049 in words is "one billion, six hundred twenty-six million, five hundred sixty-eight thousand, forty-nine".