143681431488 has 168 divisors, whose sum is σ = 442679328000. Its totient is φ = 41009536512.

The previous prime is 143681431433. The next prime is 143681431489. The reversal of 143681431488 is 884134186341.

It is a tau number, because it is divible by the number of its divisors (168).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 143681431488.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143681431489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9767563 + ... + 9782261.

It is an arithmetic number, because the mean of its divisors is an integer number (2634996000).

Almost surely, 2^143681431488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143681431488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221339664000).

143681431488 is an abundant number, since it is smaller than the sum of its proper divisors (298997896512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143681431488 is a wasteful number, since it uses less digits than its factorization.

143681431488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15767 (or 15750 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 51.

The spelling of 143681431488 in words is "one hundred forty-three billion, six hundred eighty-one million, four hundred thirty-one thousand, four hundred eighty-eight".