19413803168 has 24 divisors (see below), whose sum is σ = 38363027220. Its totient is φ = 9670812160.

The previous prime is 19413803159. The next prime is 19413803207. The reversal of 19413803168 is 86130831491.

It can be written as a sum of positive squares in 2 ways, for example, as 17252297104 + 2161506064 = 131348^2 + 46492^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1119053 + ... + 1136268.

Almost surely, 2^19413803168 is an apocalyptic number.

It is an amenable number.

19413803168 is a deficient number, since it is larger than the sum of its proper divisors (18949224052).

19413803168 is a wasteful number, since it uses less digits than its factorization.

19413803168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255600 (or 2255592 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 19413803168 in words is "nineteen billion, four hundred thirteen million, eight hundred three thousand, one hundred sixty-eight".