1890539219099 has 4 divisors (see below), whose sum is σ = 1913316800136. Its totient is φ = 1867761638064.

The previous prime is 1890539219083. The next prime is 1890539219113. The reversal of 1890539219099 is 9909129350981.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1890539219099 - 2⁴ = 1890539219083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1890539209099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11388790394 + ... + 11388790559.

It is an arithmetic number, because the mean of its divisors is an integer number (478329200034).

Almost surely, 2^{1890539219099} is an apocalyptic number.

1890539219099 is a deficient number, since it is larger than the sum of its proper divisors (22777581037).

1890539219099 is an equidigital number, since it uses as much as digits as its factorization.

1890539219099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22777581036.

The product of its (nonzero) digits is 14171760, while the sum is 65.

The spelling of 1890539219099 in words is "one trillion, eight hundred ninety billion, five hundred thirty-nine million, two hundred nineteen thousand, ninety-nine".