43271323881 has 16 divisors (see below), whose sum is σ = 64304136000. Its totient is φ = 25721653248.

The previous prime is 43271323873. The next prime is 43271323897. The reversal of 43271323881 is 18832317234.

It is a happy number.

It is not a de Polignac number, because 43271323881 - 2³ = 43271323873 is a prime.

It is a super-2 number, since 2×43271323881² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43271323801) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 22326856 + ... + 22328793.

It is an arithmetic number, because the mean of its divisors is an integer number (4019008500).

Almost surely, 2^43271323881 is an apocalyptic number.

It is an amenable number.

43271323881 is a deficient number, since it is larger than the sum of its proper divisors (21032812119).

43271323881 is a wasteful number, since it uses less digits than its factorization.

43271323881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44655688.

The product of its digits is 193536, while the sum is 42.

The spelling of 43271323881 in words is "forty-three billion, two hundred seventy-one million, three hundred twenty-three thousand, eight hundred eighty-one".