143428420509 has 64 divisors (see below), whose sum is σ = 224463495168. Its totient is φ = 80590910400.

The previous prime is 143428420507. The next prime is 143428420591. The reversal of 143428420509 is 905024824341.

It is a happy number.

It is not a de Polignac number, because 143428420509 - 2¹ = 143428420507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143428420507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4258674 + ... + 4292220.

It is an arithmetic number, because the mean of its divisors is an integer number (3507242112).

Almost surely, 2^143428420509 is an apocalyptic number.

It is an amenable number.

143428420509 is a deficient number, since it is larger than the sum of its proper divisors (81035074659).

143428420509 is a wasteful number, since it uses less digits than its factorization.

143428420509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33758.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 143428420509 in words is "one hundred forty-three billion, four hundred twenty-eight million, four hundred twenty thousand, five hundred nine".