1900006452089 has 4 divisors (see below), whose sum is σ = 2011771537524. Its totient is φ = 1788241366656.

The previous prime is 1900006452061. The next prime is 1900006452109. The reversal of 1900006452089 is 9802546000091.

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

It can be written as a sum of positive squares in 2 ways, for example, as 732111253225 + 1167895198864 = 855635^2 + 1080692^2 .

It is a cyclic number.

It is not a de Polignac number, because 1900006452089 - 2²⁴ = 1899989674873 is a prime.

It is a super-2 number, since 2×1900006452089² (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 (1900006455089) 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 3 ways as a sum of consecutive naturals, for example, 55882542692 + ... + 55882542725.

It is an arithmetic number, because the mean of its divisors is an integer number (502942884381).

Almost surely, 2^{1900006452089} is an apocalyptic number.

It is an amenable number.

1900006452089 is a deficient number, since it is larger than the sum of its proper divisors (111765085435).

1900006452089 is a wasteful number, since it uses less digits than its factorization.

1900006452089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111765085434.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 1900006452089 in words is "one trillion, nine hundred billion, six million, four hundred fifty-two thousand, eighty-nine".