19863832816996 has 27 divisors (see below), whose sum is σ = 40437215256249. Its totient is φ = 8513044465968.

The previous prime is 19863832816981. The next prime is 19863832817011. The reversal of 19863832816996 is 69961823836891.

The square root of 19863832816996 is 4456886.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (19863832816981) and next prime (19863832817011).

It can be written as a sum of positive squares in only one way, i.e., 17893627567396 + 1970205249600 = 4230086^2 + 1403640^2 .

It is a super-3 number, since 3×19863832816996³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 62237230 + ... + 62555578.

Almost surely, 2^{19863832816996} is an apocalyptic number.

19863832816996 is the 4456886-th square number.

It is an amenable number.

19863832816996 is an abundant number, since it is smaller than the sum of its proper divisors (20573382439253).

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

19863832816996 is an frugal number, since it uses more digits than its factorization.

19863832816996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636716 (or 318358 counting only the distinct ones).

The product of its digits is 1451188224, while the sum is 79.

The spelling of 19863832816996 in words is "nineteen trillion, eight hundred sixty-three billion, eight hundred thirty-two million, eight hundred sixteen thousand, nine hundred ninety-six".