43071621680 has 20 divisors (see below), whose sum is σ = 100141520592. Its totient is φ = 17228648640.

The previous prime is 43071621653. The next prime is 43071621713. The reversal of 43071621680 is 8612617034.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269197556 + ... + 269197715.

Almost surely, 2^43071621680 is an apocalyptic number.

43071621680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43071621680 is an abundant number, since it is smaller than the sum of its proper divisors (57069898912).

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

43071621680 is a wasteful number, since it uses less digits than its factorization.

43071621680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538395284 (or 538395278 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 43071621680 in words is "forty-three billion, seventy-one million, six hundred twenty-one thousand, six hundred eighty".