196543973900 has 36 divisors (see below), whose sum is σ = 426519732240. Its totient is φ = 78614030400.

The previous prime is 196543973851. The next prime is 196543973903. The reversal of 196543973900 is 9379345691.

196543973900 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (196543973903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4051790 + ... + 4100010.

It is an arithmetic number, because the mean of its divisors is an integer number (11847770340).

Almost surely, 2^196543973900 is an apocalyptic number.

196543973900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196543973900 is an abundant number, since it is smaller than the sum of its proper divisors (229975758340).

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

196543973900 is a wasteful number, since it uses less digits than its factorization.

196543973900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88994 (or 88987 counting only the distinct ones).

The product of its (nonzero) digits is 5511240, while the sum is 56.

The spelling of 196543973900 in words is "one hundred ninety-six billion, five hundred forty-three million, nine hundred seventy-three thousand, nine hundred".