143449735968 has 864 divisors, whose sum is σ = 548823159360. Its totient is φ = 36297676800.

The previous prime is 143449735939. The next prime is 143449735981. The reversal of 143449735968 is 869537944341.

143449735968 is a `hidden beast` number, since 1 + 4 + 34 + 4 + 9 + 7 + 3 + 596 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (63).

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 143 ways as a sum of consecutive naturals, for example, 210028555 + ... + 210029237.

It is an arithmetic number, because the mean of its divisors is an integer number (635211990).

Almost surely, 2^143449735968 is an apocalyptic number.

143449735968 is a gapful number since it is divisible by the number (18) 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 143449735968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274411579680).

143449735968 is an abundant number, since it is smaller than the sum of its proper divisors (405373423392).

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

143449735968 is a wasteful number, since it uses less digits than its factorization.

143449735968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779 (or 747 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 143449735968 in words is "one hundred forty-three billion, four hundred forty-nine million, seven hundred thirty-five thousand, nine hundred sixty-eight".