43648256672 has 12 divisors (see below), whose sum is σ = 85932505386. Its totient is φ = 21824128320.

The previous prime is 43648256633. The next prime is 43648256683. The reversal of 43648256672 is 27665284634.

It can be written as a sum of positive squares in only one way, i.e., 33990084496 + 9658172176 = 184364^2 + 98276^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682003979 + ... + 682004042.

Almost surely, 2^43648256672 is an apocalyptic number.

It is an amenable number.

43648256672 is a deficient number, since it is larger than the sum of its proper divisors (42284248714).

43648256672 is a wasteful number, since it uses less digits than its factorization.

43648256672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364008031 (or 1364008023 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 53.

The spelling of 43648256672 in words is "forty-three billion, six hundred forty-eight million, two hundred fifty-six thousand, six hundred seventy-two".