43189631808 has 56 divisors (see below), whose sum is σ = 114297805440. Its totient is φ = 14393364480.

The previous prime is 43189631801. The next prime is 43189631813. The reversal of 43189631808 is 80813698134.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43189631801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 945168 + ... + 989808.

It is an arithmetic number, because the mean of its divisors is an integer number (2041032240).

Almost surely, 2^43189631808 is an apocalyptic number.

43189631808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

43189631808 is an abundant number, since it is smaller than the sum of its proper divisors (71108173632).

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

43189631808 is a wasteful number, since it uses less digits than its factorization.

43189631808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49695 (or 49685 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 43189631808 in words is "forty-three billion, one hundred eighty-nine million, six hundred thirty-one thousand, eight hundred eight".