43071643672 has 8 divisors (see below), whose sum is σ = 80759331900. Its totient is φ = 21535821832.

The previous prime is 43071643661. The next prime is 43071643679. The reversal of 43071643672 is 27634617034.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43071643679) by changing a digit.

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 as a sum of consecutive naturals, namely, 2691977722 + ... + 2691977737.

Almost surely, 2^43071643672 is an apocalyptic number.

It is an amenable number.

43071643672 is a deficient number, since it is larger than the sum of its proper divisors (37687688228).

43071643672 is a wasteful number, since it uses less digits than its factorization.

43071643672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5383955465 (or 5383955461 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 43071643672 in words is "forty-three billion, seventy-one million, six hundred forty-three thousand, six hundred seventy-two".