43143661892 has 24 divisors (see below), whose sum is σ = 77599323480. Its totient is φ = 20973288960.

The previous prime is 43143661877. The next prime is 43143661903. The reversal of 43143661892 is 29816634134.

It can be written as a sum of positive squares in 4 ways, for example, as 9351663616 + 33791998276 = 96704^2 + 183826^2 .

It is a super-2 number, since 2×43143661892² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94334 + ... + 308522.

It is an arithmetic number, because the mean of its divisors is an integer number (3233305145).

Almost surely, 2^43143661892 is an apocalyptic number.

It is an amenable number.

43143661892 is a deficient number, since it is larger than the sum of its proper divisors (34455661588).

43143661892 is a wasteful number, since it uses less digits than its factorization.

43143661892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215591 (or 215589 counting only the distinct ones).

The product of its digits is 746496, while the sum is 47.

The spelling of 43143661892 in words is "forty-three billion, one hundred forty-three million, six hundred sixty-one thousand, eight hundred ninety-two".