19361698768 has 20 divisors (see below), whose sum is σ = 38723398528. Its totient is φ = 9368563680.

The previous prime is 19361698721. The next prime is 19361698777. The reversal of 19361698768 is 86789616391.

19361698768 is an admirable number.

It is a congruent number.

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, 19517346 + ... + 19518337.

Almost surely, 2^19361698768 is an apocalyptic number.

It is an amenable number.

19361698768 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19361698768 is a wasteful number, since it uses less digits than its factorization.

19361698768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39035722 (or 39035716 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 64.

The spelling of 19361698768 in words is "nineteen billion, three hundred sixty-one million, six hundred ninety-eight thousand, seven hundred sixty-eight".