19794127359 has 32 divisors (see below), whose sum is σ = 27899601408. Its totient is φ = 12458160000.

The previous prime is 19794127357. The next prime is 19794127427. The reversal of 19794127359 is 95372149791.

It is a happy number.

It is not a de Polignac number, because 19794127359 - 2¹ = 19794127357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19794127299 and 19794127308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19794127357) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2302449 + ... + 2311029.

It is an arithmetic number, because the mean of its divisors is an integer number (871862544).

Almost surely, 2^19794127359 is an apocalyptic number.

19794127359 is a deficient number, since it is larger than the sum of its proper divisors (8105474049).

19794127359 is a wasteful number, since it uses less digits than its factorization.

19794127359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9039.

The product of its digits is 4286520, while the sum is 57.

It can be divided in two parts, 19794 and 127359, that added together give a triangular number (147153 = T₅₄₂).

The spelling of 19794127359 in words is "nineteen billion, seven hundred ninety-four million, one hundred twenty-seven thousand, three hundred fifty-nine".