143923966889 has 4 divisors (see below), whose sum is σ = 143926546320. Its totient is φ = 143921387460.

The previous prime is 143923966831. The next prime is 143923966931. The reversal of 143923966889 is 988669329341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143923966889 - 2¹⁶ = 143923901353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143923966289) 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, 1204127 + ... + 1318244.

It is an arithmetic number, because the mean of its divisors is an integer number (35981636580).

Almost surely, 2^143923966889 is an apocalyptic number.

It is an amenable number.

143923966889 is a deficient number, since it is larger than the sum of its proper divisors (2579431).

143923966889 is an equidigital number, since it uses as much as digits as its factorization.

143923966889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579430.

The product of its digits is 120932352, while the sum is 68.

The spelling of 143923966889 in words is "one hundred forty-three billion, nine hundred twenty-three million, nine hundred sixty-six thousand, eight hundred eighty-nine".