543740379840 has 336 divisors, whose sum is σ = 2230350640128. Its totient is φ = 118879782912.

The previous prime is 543740379821. The next prime is 543740379841. The reversal of 543740379840 is 48973047345.

543740379840 is a `hidden beast` number, since 543 + 7 + 4 + 0 + 3 + 7 + 98 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is not an unprimeable number, because it can be changed into a prime (543740379841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122652 + ... + 1050011.

Almost surely, 2^543740379840 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 543740379840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1115175320064).

543740379840 is an abundant number, since it is smaller than the sum of its proper divisors (1686610260288).

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

543740379840 is a wasteful number, since it uses less digits than its factorization.

543740379840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172716 (or 1172703 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 543740379840 in words is "five hundred forty-three billion, seven hundred forty million, three hundred seventy-nine thousand, eight hundred forty".