19812096468 has 18 divisors (see below), whose sum is σ = 50080577274. Its totient is φ = 6604032144.

The previous prime is 19812096443. The next prime is 19812096503. The reversal of 19812096468 is 86469021891.

19812096468 is a `hidden beast` number, since 1 + 98 + 1 + 2 + 0 + 96 + 468 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18776672784 + 1035423684 = 137028^2 + 32178^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 275167971 + ... + 275168042.

It is an arithmetic number, because the mean of its divisors is an integer number (2782254293).

Almost surely, 2^19812096468 is an apocalyptic number.

19812096468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19812096468 is an abundant number, since it is smaller than the sum of its proper divisors (30268480806).

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

19812096468 is a wasteful number, since it uses less digits than its factorization.

19812096468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550336023 (or 550336018 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 19812096468 in words is "nineteen billion, eight hundred twelve million, ninety-six thousand, four hundred sixty-eight".