19079426868 has 12 divisors (see below), whose sum is σ = 44518662720. Its totient is φ = 6359808952.

The previous prime is 19079426867. The next prime is 19079426869. The reversal of 19079426868 is 86862497091.

It is an interprime number because it is at equal distance from previous prime (19079426867) and next prime (19079426869).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×19079426868² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19079426867) 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 3 ways as a sum of consecutive naturals, for example, 794976108 + ... + 794976131.

It is an arithmetic number, because the mean of its divisors is an integer number (3709888560).

Almost surely, 2^19079426868 is an apocalyptic number.

It is an amenable number.

19079426868 is an abundant number, since it is smaller than the sum of its proper divisors (25439235852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19079426868 is a wasteful number, since it uses less digits than its factorization.

19079426868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589952246 (or 1589952244 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 19079426868 in words is "nineteen billion, seventy-nine million, four hundred twenty-six thousand, eight hundred sixty-eight".