543445073840 has 40 divisors (see below), whose sum is σ = 1263540854400. Its totient is φ = 217372686336.

The previous prime is 543445073819. The next prime is 543445073869. The reversal of 543445073840 is 48370544345.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5565761 + ... + 5662559.

It is an arithmetic number, because the mean of its divisors is an integer number (31588521360).

Almost surely, 2^543445073840 is an apocalyptic number.

It is an amenable number.

543445073840 is an abundant number, since it is smaller than the sum of its proper divisors (720095780560).

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

543445073840 is a wasteful number, since it uses less digits than its factorization.

543445073840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166989 (or 166983 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 47.

The spelling of 543445073840 in words is "five hundred forty-three billion, four hundred forty-five million, seventy-three thousand, eight hundred forty".