19214259008 has 28 divisors (see below), whose sum is σ = 43575195552. Its totient is φ = 8234682240.

The previous prime is 19214259007. The next prime is 19214259037. The reversal of 19214259008 is 80095241291.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19214259007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21444038 + ... + 21444933.

It is an arithmetic number, because the mean of its divisors is an integer number (1556256984).

Almost surely, 2^19214259008 is an apocalyptic number.

It is an amenable number.

19214259008 is an abundant number, since it is smaller than the sum of its proper divisors (24360936544).

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

19214259008 is an equidigital number, since it uses as much as digits as its factorization.

19214259008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42888990 (or 42888980 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 19214259008 in words is "nineteen billion, two hundred fourteen million, two hundred fifty-nine thousand, eight".