977946943744 has 81 divisors (see below), whose sum is σ = 2060855438733. Its totient is φ = 463095622656.

The previous prime is 977946943733. The next prime is 977946943759. The reversal of 977946943744 is 447349649779.

The square root of 977946943744 is 988912.

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., 973142790400 + 4804153344 = 986480^2 + 69312^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 300627622 + ... + 300630874.

Almost surely, 2^977946943744 is an apocalyptic number.

977946943744 is the 988912-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 977946943744

977946943744 is an abundant number, since it is smaller than the sum of its proper divisors (1082908494989).

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

977946943744 is an frugal number, since it uses more digits than its factorization.

977946943744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6560 (or 3274 counting only the distinct ones).

The product of its digits is 1152216576, while the sum is 73.

The spelling of 977946943744 in words is "nine hundred seventy-seven billion, nine hundred forty-six million, nine hundred forty-three thousand, seven hundred forty-four".