143628785329 has 2 divisors, whose sum is σ = 143628785330. Its totient is φ = 143628785328.

The previous prime is 143628785327. The next prime is 143628785441. The reversal of 143628785329 is 923587826341.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89684077729 + 53944707600 = 299473^2 + 232260^2 .

It is a cyclic number.

It is not a de Polignac number, because 143628785329 - 2¹ = 143628785327 is a prime.

Together with 143628785327, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (143628785323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71814392664 + 71814392665.

It is an arithmetic number, because the mean of its divisors is an integer number (71814392665).

Almost surely, 2^143628785329 is an apocalyptic number.

It is an amenable number.

143628785329 is a deficient number, since it is larger than the sum of its proper divisors (1).

143628785329 is an equidigital number, since it uses as much as digits as its factorization.

143628785329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 58.

The spelling of 143628785329 in words is "one hundred forty-three billion, six hundred twenty-eight million, seven hundred eighty-five thousand, three hundred twenty-nine".