43946972905 has 16 divisors (see below), whose sum is σ = 57536365824. Its totient is φ = 31958222080.

The previous prime is 43946972899. The next prime is 43946972929. The reversal of 43946972905 is 50927964934.

It is not a de Polignac number, because 43946972905 - 2¹⁷ = 43946841833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43946972905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605472 + ... + 674158.

It is an arithmetic number, because the mean of its divisors is an integer number (3596022864).

Almost surely, 2^43946972905 is an apocalyptic number.

It is an amenable number.

43946972905 is a deficient number, since it is larger than the sum of its proper divisors (13589392919).

43946972905 is a wasteful number, since it uses less digits than its factorization.

43946972905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80336.

The product of its (nonzero) digits is 14696640, while the sum is 58.

The spelling of 43946972905 in words is "forty-three billion, nine hundred forty-six million, nine hundred seventy-two thousand, nine hundred five".