1626131555089 has 2 divisors, whose sum is σ = 1626131555090. Its totient is φ = 1626131555088.

The previous prime is 1626131555021. The next prime is 1626131555117. The reversal of 1626131555089 is 9805551316261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1615357115089 + 10774440000 = 1270967^2 + 103800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1626131555089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1626731555089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813065777544 + 813065777545.

It is an arithmetic number, because the mean of its divisors is an integer number (813065777545).

Almost surely, 2^{1626131555089} is an apocalyptic number.

It is an amenable number.

1626131555089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1626131555089 is an equidigital number, since it uses as much as digits as its factorization.

1626131555089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944000, while the sum is 52.

The spelling of 1626131555089 in words is "one trillion, six hundred twenty-six billion, one hundred thirty-one million, five hundred fifty-five thousand, eighty-nine".