19312794068 has 12 divisors (see below), whose sum is σ = 33907480992. Its totient is φ = 9624942360.

The previous prime is 19312794047. The next prime is 19312794071. The reversal of 19312794068 is 86049721391.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7862288 + ... + 7864743.

It is an arithmetic number, because the mean of its divisors is an integer number (2825623416).

Almost surely, 2^19312794068 is an apocalyptic number.

It is an amenable number.

19312794068 is a deficient number, since it is larger than the sum of its proper divisors (14594686924).

19312794068 is a wasteful number, since it uses less digits than its factorization.

19312794068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15727342 (or 15727340 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 19312794068 in words is "nineteen billion, three hundred twelve million, seven hundred ninety-four thousand, sixty-eight".