1890353624947 has 2 divisors, whose sum is σ = 1890353624948. Its totient is φ = 1890353624946.

The previous prime is 1890353624923. The next prime is 1890353624959. The reversal of 1890353624947 is 7494263530981.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1890353624947 - 2¹⁹ = 1890353100659 is a prime.

It is not a weakly prime, because it can be changed into another prime (1890353624447) 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, 945176812473 + 945176812474.

It is an arithmetic number, because the mean of its divisors is an integer number (945176812474).

It is a 1-persistent number, because it is pandigital, but 2⋅1890353624947 = 3780707249894 is not.

Almost surely, 2^{1890353624947} is an apocalyptic number.

1890353624947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1890353624947 is an equidigital number, since it uses as much as digits as its factorization.

1890353624947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39191040, while the sum is 61.

The spelling of 1890353624947 in words is "one trillion, eight hundred ninety billion, three hundred fifty-three million, six hundred twenty-four thousand, nine hundred forty-seven".