1143981810432 has 216 divisors, whose sum is σ = 3447011035104. Its totient is φ = 364194496512.

The previous prime is 1143981810427. The next prime is 1143981810443. The reversal of 1143981810432 is 2340181893411.

1143981810432 is a `hidden beast` number, since 1 + 1 + 4 + 39 + 8 + 181 + 0 + 432 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 35647578 + ... + 35679654.

Almost surely, 2^{1143981810432} is an apocalyptic number.

1143981810432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143981810432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1723505517552).

1143981810432 is an abundant number, since it is smaller than the sum of its proper divisors (2303029224672).

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

1143981810432 is a wasteful number, since it uses less digits than its factorization.

1143981810432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32795 (or 32778 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 1143981810432 in words is "one trillion, one hundred forty-three billion, nine hundred eighty-one million, eight hundred ten thousand, four hundred thirty-two".