43730778027 has 12 divisors (see below), whose sum is σ = 60387649400. Its totient is φ = 28148545152.

The previous prime is 43730777897. The next prime is 43730778031. The reversal of 43730778027 is 72087703734.

It is not a de Polignac number, because 43730778027 - 2¹⁶ = 43730712491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43730778827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8663902 + ... + 8668947.

Almost surely, 2^43730778027 is an apocalyptic number.

43730778027 is a deficient number, since it is larger than the sum of its proper divisors (16656871373).

43730778027 is a wasteful number, since it uses less digits than its factorization.

43730778027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17332910 (or 17332881 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 48.

The spelling of 43730778027 in words is "forty-three billion, seven hundred thirty million, seven hundred seventy-eight thousand, twenty-seven".