2978344220944 has 15 divisors (see below), whose sum is σ = 5770555302967. Its totient is φ = 1489168658896.

The previous prime is 2978344220923. The next prime is 2978344220989. The reversal of 2978344220944 is 4490224438792.

The square root of 2978344220944 is 1725788.

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

It is a super-2 number, since 2×2978344220944² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 6687429 + ... + 7118875.

Almost surely, 2^{2978344220944} is an apocalyptic number.

2978344220944 is the 1725788-th square number.

It is an amenable number.

2978344220944 is a deficient number, since it is larger than the sum of its proper divisors (2792211082023).

2978344220944 is an frugal number, since it uses more digits than its factorization.

2978344220944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862902 (or 431449 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 58.

The spelling of 2978344220944 in words is "two trillion, nine hundred seventy-eight billion, three hundred forty-four million, two hundred twenty thousand, nine hundred forty-four".