1954443144196 has 9 divisors (see below), whose sum is σ = 3420280395399. Its totient is φ = 977220174084.

The previous prime is 1954443144193. The next prime is 1954443144301. The reversal of 1954443144196 is 6914413444591.

The square root of 1954443144196 is 1398014.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1954443144193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2446525 + ... + 3145531.

Almost surely, 2^{1954443144196} is an apocalyptic number.

1954443144196 is the 1398014-th square number.

It is an amenable number.

1954443144196 is a deficient number, since it is larger than the sum of its proper divisors (1465837251203).

1954443144196 is an frugal number, since it uses more digits than its factorization.

1954443144196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398018 (or 699009 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 55.

The spelling of 1954443144196 in words is "one trillion, nine hundred fifty-four billion, four hundred forty-three million, one hundred forty-four thousand, one hundred ninety-six".