19434436039 has 8 divisors (see below), whose sum is σ = 19767600000. Its totient is φ = 19101397752.

The previous prime is 19434436031. The next prime is 19434436061. The reversal of 19434436039 is 93063443491.

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 19434436039 - 2³ = 19434436031 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 19434436039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19434436031) 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, 312462 + ... + 369460.

It is an arithmetic number, because the mean of its divisors is an integer number (2470950000).

Almost surely, 2^19434436039 is an apocalyptic number.

19434436039 is a deficient number, since it is larger than the sum of its proper divisors (333163961).

19434436039 is an equidigital number, since it uses as much as digits as its factorization.

19434436039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62837.

The product of its (nonzero) digits is 839808, while the sum is 46.

The spelling of 19434436039 in words is "nineteen billion, four hundred thirty-four million, four hundred thirty-six thousand, thirty-nine".