196985068900 has 27 divisors (see below), whose sum is σ = 427467230841. Its totient is φ = 78792252240.

The previous prime is 196985068877. The next prime is 196985068901. The reversal of 196985068900 is 9860589691.

It is a happy number.

The square root of 196985068900 is 443830.

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

It can be written as a sum of positive squares in only one way, i.e., 70914624804 + 126070444096 = 266298^2 + 355064^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196985068901) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4416109 + ... + 4460491.

Almost surely, 2^196985068900 is an apocalyptic number.

196985068900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196985068900 is the 443830-th square number.

It is an amenable number.

196985068900 is an abundant number, since it is smaller than the sum of its proper divisors (230482161941).

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

196985068900 is an frugal number, since it uses more digits than its factorization.

196985068900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88780 (or 44390 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 61.

The spelling of 196985068900 in words is "one hundred ninety-six billion, nine hundred eighty-five million, sixty-eight thousand, nine hundred".