43683926049 has 21 divisors (see below), whose sum is σ = 65504389539. Its totient is φ = 29118855240.

The previous prime is 43683926023. The next prime is 43683926071. The reversal of 43683926049 is 94062938634.

The square root of 43683926049 is 209007.

It is a perfect power (a square), and thus also a powerful number.

43683926049 is a `hidden beast` number, since 436 + 83 + 92 + 6 + 0 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8976236049 + 34707690000 = 94743^2 + 186300^2 .

It is not a de Polignac number, because 43683926049 - 2⁵ = 43683926017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43683925986 and 43683926004.

It is not an unprimeable number, because it can be changed into a prime (43683926089) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 5639319 + ... + 5647059.

Almost surely, 2^43683926049 is an apocalyptic number.

43683926049 is the 209007-th square number.

43683926049 is the 104504-th centered octagonal number.

It is an amenable number.

43683926049 is a deficient number, since it is larger than the sum of its proper divisors (21820463490).

43683926049 is an frugal number, since it uses more digits than its factorization.

43683926049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15500 (or 7744 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 54.

The spelling of 43683926049 in words is "forty-three billion, six hundred eighty-three million, nine hundred twenty-six thousand, forty-nine".