43381690256 has 40 divisors (see below), whose sum is σ = 84519054720. Its totient is φ = 21570621056.

The previous prime is 43381690241. The next prime is 43381690267. The reversal of 43381690256 is 65209618334.

It is a self number, because there is not a number n which added to its sum of digits gives 43381690256.

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 7 ways as a sum of consecutive naturals, for example, 2414201 + ... + 2432103.

It is an arithmetic number, because the mean of its divisors is an integer number (2112976368).

Almost surely, 2^43381690256 is an apocalyptic number.

It is an amenable number.

43381690256 is a deficient number, since it is larger than the sum of its proper divisors (41137364464).

43381690256 is a wasteful number, since it uses less digits than its factorization.

43381690256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18743 (or 18737 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 43381690256 in words is "forty-three billion, three hundred eighty-one million, six hundred ninety thousand, two hundred fifty-six".