1626926008849 has 2 divisors, whose sum is σ = 1626926008850. Its totient is φ = 1626926008848.

The previous prime is 1626926008831. The next prime is 1626926008871. The reversal of 1626926008849 is 9488006296261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1555837118224 + 71088890625 = 1247332^2 + 266625^2 .

It is a cyclic number.

It is not a de Polignac number, because 1626926008849 - 2⁵ = 1626926008817 is a prime.

It is not a weakly prime, because it can be changed into another prime (1626926008549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813463004424 + 813463004425.

It is an arithmetic number, because the mean of its divisors is an integer number (813463004425).

Almost surely, 2^{1626926008849} is an apocalyptic number.

It is an amenable number.

1626926008849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1626926008849 is an equidigital number, since it uses as much as digits as its factorization.

1626926008849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17915904, while the sum is 61.

The spelling of 1626926008849 in words is "one trillion, six hundred twenty-six billion, nine hundred twenty-six million, eight thousand, eight hundred forty-nine".