19073392668 has 72 divisors (see below), whose sum is σ = 55364574720. Its totient is φ = 5475612960.

The previous prime is 19073392651. The next prime is 19073392693. The reversal of 19073392668 is 86629337091.

19073392668 is a `hidden beast` number, since 190 + 7 + 3 + 392 + 6 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1259980 + ... + 1275027.

Almost surely, 2^19073392668 is an apocalyptic number.

19073392668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19073392668 is an abundant number, since it is smaller than the sum of its proper divisors (36291182052).

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

19073392668 is a wasteful number, since it uses less digits than its factorization.

19073392668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535047 (or 2535042 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 19073392668 in words is "nineteen billion, seventy-three million, three hundred ninety-two thousand, six hundred sixty-eight".