43605981428 has 24 divisors (see below), whose sum is σ = 82374122880. Its totient is φ = 20135894240.

The previous prime is 43605981401. The next prime is 43605981431. The reversal of 43605981428 is 82418950634.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8169368 + ... + 8174703.

It is an arithmetic number, because the mean of its divisors is an integer number (3432255120).

Almost surely, 2^43605981428 is an apocalyptic number.

It is an amenable number.

43605981428 is a deficient number, since it is larger than the sum of its proper divisors (38768141452).

43605981428 is a wasteful number, since it uses less digits than its factorization.

43605981428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16344127 (or 16344125 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 43605981428 in words is "forty-three billion, six hundred five million, nine hundred eighty-one thousand, four hundred twenty-eight".