19038396436 has 12 divisors (see below), whose sum is σ = 33318159840. Its totient is φ = 9518922200.

The previous prime is 19038396427. The next prime is 19038396449. The reversal of 19038396436 is 63469383091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235011 + ... + 305461.

It is an arithmetic number, because the mean of its divisors is an integer number (2776513320).

Almost surely, 2^19038396436 is an apocalyptic number.

It is an amenable number.

19038396436 is a deficient number, since it is larger than the sum of its proper divisors (14279763404).

19038396436 is a wasteful number, since it uses less digits than its factorization.

19038396436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138014 (or 138012 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 52.

The spelling of 19038396436 in words is "nineteen billion, thirty-eight million, three hundred ninety-six thousand, four hundred thirty-six".