1892542048489 has 2 divisors, whose sum is σ = 1892542048490. Its totient is φ = 1892542048488.

The previous prime is 1892542048459. The next prime is 1892542048571. The reversal of 1892542048489 is 9848402452981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1303953880464 + 588588168025 = 1141908^2 + 767195^2 .

It is a cyclic number.

It is not a de Polignac number, because 1892542048489 - 2¹¹ = 1892542046441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1892542048489.

It is not a weakly prime, because it can be changed into another prime (1892542048429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 946271024244 + 946271024245.

It is an arithmetic number, because the mean of its divisors is an integer number (946271024245).

Almost surely, 2^{1892542048489} is an apocalyptic number.

It is an amenable number.

1892542048489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1892542048489 is an equidigital number, since it uses as much as digits as its factorization.

1892542048489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53084160, while the sum is 64.

The spelling of 1892542048489 in words is "one trillion, eight hundred ninety-two billion, five hundred forty-two million, forty-eight thousand, four hundred eighty-nine".