19412688479 has 16 divisors (see below), whose sum is σ = 20373383520. Its totient is φ = 18472513920.

The previous prime is 19412688469. The next prime is 19412688499. The reversal of 19412688479 is 97488621491.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19412688479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19412688469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1003769 + ... + 1022925.

It is an arithmetic number, because the mean of its divisors is an integer number (1273336470).

Almost surely, 2^19412688479 is an apocalyptic number.

19412688479 is a deficient number, since it is larger than the sum of its proper divisors (960695041).

19412688479 is a wasteful number, since it uses less digits than its factorization.

19412688479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19690.

The product of its digits is 6967296, while the sum is 59.

The spelling of 19412688479 in words is "nineteen billion, four hundred twelve million, six hundred eighty-eight thousand, four hundred seventy-nine".