43143554420 has 12 divisors (see below), whose sum is σ = 90601464324. Its totient is φ = 17257421760.

The previous prime is 43143554393. The next prime is 43143554459. The reversal of 43143554420 is 2445534134.

It can be written as a sum of positive squares in 2 ways, for example, as 8450021776 + 34693532644 = 91924^2 + 186262^2 .

It is a super-2 number, since 2×43143554420² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1078588841 + ... + 1078588880.

It is an arithmetic number, because the mean of its divisors is an integer number (7550122027).

Almost surely, 2^43143554420 is an apocalyptic number.

It is an amenable number.

43143554420 is an abundant number, since it is smaller than the sum of its proper divisors (47457909904).

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

43143554420 is a wasteful number, since it uses less digits than its factorization.

43143554420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157177730 (or 2157177728 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

The spelling of 43143554420 in words is "forty-three billion, one hundred forty-three million, five hundred fifty-four thousand, four hundred twenty".