19493027308 has 24 divisors (see below), whose sum is σ = 34394845184. Its totient is φ = 9665989200.

The previous prime is 19493027293. The next prime is 19493027341. The reversal of 19493027308 is 80372039491.

It is a super-2 number, since 2×19493027308² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1655803 + ... + 1667533.

Almost surely, 2^19493027308 is an apocalyptic number.

It is an amenable number.

19493027308 is a deficient number, since it is larger than the sum of its proper divisors (14901817876).

19493027308 is a wasteful number, since it uses less digits than its factorization.

19493027308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15133 (or 15131 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 19493027308 in words is "nineteen billion, four hundred ninety-three million, twenty-seven thousand, three hundred eight".