143628785381 has 16 divisors (see below), whose sum is σ = 146034819840. Its totient is φ = 141244508160.

The previous prime is 143628785329. The next prime is 143628785441. The reversal of 143628785381 is 183587826341.

143628785381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 143628785381 - 2⁶ = 143628785317 is a prime.

It is a super-2 number, since 2×143628785381² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143628785681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13846565 + ... + 13856933.

It is an arithmetic number, because the mean of its divisors is an integer number (9127176240).

Almost surely, 2^143628785381 is an apocalyptic number.

It is an amenable number.

143628785381 is a deficient number, since it is larger than the sum of its proper divisors (2406034459).

143628785381 is a wasteful number, since it uses less digits than its factorization.

143628785381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11396.

The product of its digits is 7741440, while the sum is 56.

The spelling of 143628785381 in words is "one hundred forty-three billion, six hundred twenty-eight million, seven hundred eighty-five thousand, three hundred eighty-one".