43390791039 has 8 divisors (see below), whose sum is σ = 58036895280. Its totient is φ = 28835940416.

The previous prime is 43390791029. The next prime is 43390791079. The reversal of 43390791039 is 93019709334.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43390791039 - 2²⁵ = 43357236607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43390791029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22812294 + ... + 22814195.

It is an arithmetic number, because the mean of its divisors is an integer number (7254611910).

Almost surely, 2^43390791039 is an apocalyptic number.

43390791039 is a deficient number, since it is larger than the sum of its proper divisors (14646104241).

43390791039 is a wasteful number, since it uses less digits than its factorization.

43390791039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45626809.

The product of its (nonzero) digits is 551124, while the sum is 48.

The spelling of 43390791039 in words is "forty-three billion, three hundred ninety million, seven hundred ninety-one thousand, thirty-nine".