196923769856 has 176 divisors, whose sum is σ = 456513096960. Its totient is φ = 83910328320.

The previous prime is 196923769853. The next prime is 196923769963. The reversal of 196923769856 is 658967329691.

196923769856 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (176).

It is a super-2 number, since 2×196923769856² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 196923769856.

It is not an unprimeable number, because it can be changed into a prime (196923769853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51508361 + ... + 51512183.

Almost surely, 2^196923769856 is an apocalyptic number.

196923769856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196923769856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228256548480).

196923769856 is an abundant number, since it is smaller than the sum of its proper divisors (259589327104).

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

196923769856 is a wasteful number, since it uses less digits than its factorization.

196923769856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4140 (or 4122 counting only the distinct ones).

The product of its digits is 264539520, while the sum is 71.

The spelling of 196923769856 in words is "one hundred ninety-six billion, nine hundred twenty-three million, seven hundred sixty-nine thousand, eight hundred fifty-six".