2089646253917 has 2 divisors, whose sum is σ = 2089646253918. Its totient is φ = 2089646253916.

The previous prime is 2089646253911. The next prime is 2089646254063. The reversal of 2089646253917 is 7193526469802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2036411766841 + 53234487076 = 1427029^2 + 230726^2 .

It is a cyclic number.

It is not a de Polignac number, because 2089646253917 - 2⁶ = 2089646253853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2089646253917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2089646253911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1044823126958 + 1044823126959.

It is an arithmetic number, because the mean of its divisors is an integer number (1044823126959).

It is a 1-persistent number, because it is pandigital, but 2⋅2089646253917 = 4179292507834 is not.

Almost surely, 2^{2089646253917} is an apocalyptic number.

It is an amenable number.

2089646253917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2089646253917 is an equidigital number, since it uses as much as digits as its factorization.

2089646253917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39191040, while the sum is 62.

The spelling of 2089646253917 in words is "two trillion, eighty-nine billion, six hundred forty-six million, two hundred fifty-three thousand, nine hundred seventeen".