1649050683589 has 2 divisors, whose sum is σ = 1649050683590. Its totient is φ = 1649050683588.

The previous prime is 1649050683521. The next prime is 1649050683611. The reversal of 1649050683589 is 9853860509461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1606277412100 + 42773271489 = 1267390^2 + 206817^2 .

It is a cyclic number.

It is not a de Polignac number, because 1649050683589 - 2¹¹ = 1649050681541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1649050683589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1649050686589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 824525341794 + 824525341795.

It is an arithmetic number, because the mean of its divisors is an integer number (824525341795).

Almost surely, 2^{1649050683589} is an apocalyptic number.

It is an amenable number.

1649050683589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1649050683589 is an equidigital number, since it uses as much as digits as its factorization.

1649050683589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55987200, while the sum is 64.

The spelling of 1649050683589 in words is "one trillion, six hundred forty-nine billion, fifty million, six hundred eighty-three thousand, five hundred eighty-nine".