1890307584889 has 16 divisors (see below), whose sum is σ = 2038742006400. Its totient is φ = 1746316018944.

The previous prime is 1890307584883. The next prime is 1890307584911. The reversal of 1890307584889 is 9884857030981.

It is a cyclic number.

It is not a de Polignac number, because 1890307584889 - 2⁷ = 1890307584761 is a prime.

It is a super-2 number, since 2×1890307584889² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1890307584883) 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 in 15 ways as a sum of consecutive naturals, for example, 4568709 + ... + 4965250.

It is an arithmetic number, because the mean of its divisors is an integer number (127421375400).

Almost surely, 2^{1890307584889} is an apocalyptic number.

It is an amenable number.

1890307584889 is a deficient number, since it is larger than the sum of its proper divisors (148434421511).

1890307584889 is a wasteful number, since it uses less digits than its factorization.

1890307584889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9534192.

The product of its (nonzero) digits is 139345920, while the sum is 70.

The spelling of 1890307584889 in words is "one trillion, eight hundred ninety billion, three hundred seven million, five hundred eighty-four thousand, eight hundred eighty-nine".