143678197988 has 36 divisors (see below), whose sum is σ = 277403096628. Its totient is φ = 65061809280.

The previous prime is 143678197981. The next prime is 143678198029. The reversal of 143678197988 is 889791876341.

It can be written as a sum of positive squares in 6 ways, for example, as 860718244 + 142817479744 = 29338^2 + 377912^2 .

It is not an unprimeable number, because it can be changed into a prime (143678197981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1969283 + ... + 2040938.

It is an arithmetic number, because the mean of its divisors is an integer number (7705641573).

Almost surely, 2^143678197988 is an apocalyptic number.

It is an amenable number.

143678197988 is a deficient number, since it is larger than the sum of its proper divisors (133724898640).

143678197988 is a wasteful number, since it uses less digits than its factorization.

143678197988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010304 (or 4010289 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 71.

The spelling of 143678197988 in words is "one hundred forty-three billion, six hundred seventy-eight million, one hundred ninety-seven thousand, nine hundred eighty-eight".