19284672979 has 12 divisors (see below), whose sum is σ = 22780605672. Its totient is φ = 16182940800.

The previous prime is 19284672941. The next prime is 19284673033. The reversal of 19284672979 is 97927648291.

It is not a de Polignac number, because 19284672979 - 2⁹ = 19284672467 is a prime.

It is a super-2 number, since 2×19284672979² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19284672979.

It is not an unprimeable number, because it can be changed into a prime (19284672929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5184982 + ... + 5188699.

It is an arithmetic number, because the mean of its divisors is an integer number (1898383806).

Almost surely, 2^19284672979 is an apocalyptic number.

19284672979 is a deficient number, since it is larger than the sum of its proper divisors (3495932693).

19284672979 is a wasteful number, since it uses less digits than its factorization.

19284672979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10373718 (or 10373705 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 64.

The spelling of 19284672979 in words is "nineteen billion, two hundred eighty-four million, six hundred seventy-two thousand, nine hundred seventy-nine".