196918072562500 has 63 divisors (see below), whose sum is σ = 430760444223081. Its totient is φ = 78765825750000.

The previous prime is 196918072562473. The next prime is 196918072562537. The reversal of 196918072562500 is 5265270819691.

The square root of 196918072562500 is 14032750.

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

It can be written as a sum of positive squares in 3 ways, for example, as 172519135699716 + 24398936862784 = 13134654^2 + 4939528^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 3508159435 + ... + 3508215565.

Almost surely, 2^{196918072562500} is an apocalyptic number.

196918072562500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196918072562500 is the 14032750-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196918072562500

196918072562500 is an abundant number, since it is smaller than the sum of its proper divisors (233842371660581).

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

196918072562500 is an frugal number, since it uses more digits than its factorization.

196918072562500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112296 (or 56138 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 61.

The spelling of 196918072562500 in words is "one hundred ninety-six trillion, nine hundred eighteen billion, seventy-two million, five hundred sixty-two thousand, five hundred".