196940862407844 has 81 divisors (see below), whose sum is σ = 510269844976801. Its totient is φ = 64044686228160.

The previous prime is 196940862407831. The next prime is 196940862407857. The reversal of 196940862407844 is 448704268049691.

The square root of 196940862407844 is 14033562.

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

196940862407844 is a `hidden beast` number, since 1 + 9 + 69 + 4 + 0 + 86 + 2 + 407 + 84 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (196940862407831) and next prime (196940862407857).

It can be written as a sum of positive squares in only one way, i.e., 9489714369444 + 187451148038400 = 3080538^2 + 13691280^2 .

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 26 ways as a sum of consecutive naturals, for example, 3452227729 + ... + 3452284775.

Almost surely, 2^{196940862407844} is an apocalyptic number.

196940862407844 is the 14033562-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196940862407844

196940862407844 is an abundant number, since it is smaller than the sum of its proper divisors (313328982568957).

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

196940862407844 is an frugal number, since it uses more digits than its factorization.

196940862407844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114186 (or 57093 counting only the distinct ones).

The product of its (nonzero) digits is 668860416, while the sum is 72.

The spelling of 196940862407844 in words is "one hundred ninety-six trillion, nine hundred forty billion, eight hundred sixty-two million, four hundred seven thousand, eight hundred forty-four".