1143549361728 has 896 divisors, whose sum is σ = 3768634982400. Its totient is φ = 338610585600.

The previous prime is 1143549361673. The next prime is 1143549361781. The reversal of 1143549361728 is 8271639453411.

1143549361728 is a `hidden beast` number, since 1 + 1 + 43 + 549 + 36 + 1 + 7 + 28 = 666.

It is a super-2 number, since 2×1143549361728² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7015640175 + ... + 7015640337.

Almost surely, 2^{1143549361728} is an apocalyptic number.

1143549361728 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 1143549361728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1884317491200).

1143549361728 is an abundant number, since it is smaller than the sum of its proper divisors (2625085620672).

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

1143549361728 is a wasteful number, since it uses less digits than its factorization.

1143549361728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 392 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 1143549361728 in words is "one trillion, one hundred forty-three billion, five hundred forty-nine million, three hundred sixty-one thousand, seven hundred twenty-eight".