543256642445 has 16 divisors (see below), whose sum is σ = 753005999808. Its totient is φ = 371854813440.

The previous prime is 543256642421. The next prime is 543256642531. The reversal of 543256642445 is 544246652345.

It is not a de Polignac number, because 543256642445 - 2⁸ = 543256642189 is a prime.

It is a super-2 number, since 2×543256642445² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 543256642393 and 543256642402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290510639 + ... + 290512508.

It is an arithmetic number, because the mean of its divisors is an integer number (47062874988).

Almost surely, 2^543256642445 is an apocalyptic number.

543256642445 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

543256642445 is a deficient number, since it is larger than the sum of its proper divisors (209749357363).

543256642445 is a wasteful number, since it uses less digits than its factorization.

543256642445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581023180.

The product of its digits is 13824000, while the sum is 50.

The spelling of 543256642445 in words is "five hundred forty-three billion, two hundred fifty-six million, six hundred forty-two thousand, four hundred forty-five".