19872285919 has 8 divisors (see below), whose sum is σ = 20406294608. Its totient is φ = 19344994560.

The previous prime is 19872285893. The next prime is 19872285943. The reversal of 19872285919 is 91958227891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19872285919 - 2⁷ = 19872285791 is a prime.

It is a super-2 number, since 2×19872285919² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19872285319) 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 7 ways as a sum of consecutive naturals, for example, 1673337 + ... + 1685170.

It is an arithmetic number, because the mean of its divisors is an integer number (2550786826).

Almost surely, 2^19872285919 is an apocalyptic number.

19872285919 is a deficient number, since it is larger than the sum of its proper divisors (534008689).

19872285919 is an equidigital number, since it uses as much as digits as its factorization.

19872285919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3358665.

The product of its digits is 6531840, while the sum is 61.

The spelling of 19872285919 in words is "nineteen billion, eight hundred seventy-two million, two hundred eighty-five thousand, nine hundred nineteen".