143363979889 has 4 divisors (see below), whose sum is σ = 154391978356. Its totient is φ = 132335981424.

The previous prime is 143363979887. The next prime is 143363979907. The reversal of 143363979889 is 988979363341.

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 66057738289 + 77306241600 = 257017^2 + 278040^2 .

It is a cyclic number.

It is not a de Polignac number, because 143363979889 - 2¹ = 143363979887 is a prime.

It is a super-2 number, since 2×143363979889² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143363979887) 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, 5513999214 + ... + 5513999239.

It is an arithmetic number, because the mean of its divisors is an integer number (38597994589).

Almost surely, 2^143363979889 is an apocalyptic number.

It is an amenable number.

143363979889 is a deficient number, since it is larger than the sum of its proper divisors (11027998467).

143363979889 is a wasteful number, since it uses less digits than its factorization.

143363979889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11027998466.

The product of its digits is 211631616, while the sum is 70.

The spelling of 143363979889 in words is "one hundred forty-three billion, three hundred sixty-three million, nine hundred seventy-nine thousand, eight hundred eighty-nine".