19753689468 has 12 divisors (see below), whose sum is σ = 46091942120. Its totient is φ = 6584563152.

The previous prime is 19753689457. The next prime is 19753689493. The reversal of 19753689468 is 86498635791.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×19753689468³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19753689399 and 19753689408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823070383 + ... + 823070406.

Almost surely, 2^19753689468 is an apocalyptic number.

It is an amenable number.

19753689468 is an abundant number, since it is smaller than the sum of its proper divisors (26338252652).

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

19753689468 is a wasteful number, since it uses less digits than its factorization.

19753689468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646140796 (or 1646140794 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 66.

The spelling of 19753689468 in words is "nineteen billion, seven hundred fifty-three million, six hundred eighty-nine thousand, four hundred sixty-eight".