19869696008 has 8 divisors (see below), whose sum is σ = 37255680030. Its totient is φ = 9934848000.

The previous prime is 19869695977. The next prime is 19869696037. The reversal of 19869696008 is 80069696891.

It can be written as a sum of positive squares in only one way, i.e., 13501975204 + 6367720804 = 116198^2 + 79798^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×19869696008² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1241855993 + ... + 1241856008.

Almost surely, 2^19869696008 is an apocalyptic number.

It is an amenable number.

19869696008 is a deficient number, since it is larger than the sum of its proper divisors (17385984022).

19869696008 is a wasteful number, since it uses less digits than its factorization.

19869696008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483712007 (or 2483712003 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 62.

The spelling of 19869696008 in words is "nineteen billion, eight hundred sixty-nine million, six hundred ninety-six thousand, eight".