1984925947876 has 27 divisors (see below), whose sum is σ = 3488461729627. Its totient is φ = 988240578560.

The previous prime is 1984925947801. The next prime is 1984925947883. The reversal of 1984925947876 is 6787495294891.

The square root of 1984925947876 is 1408874.

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

It can be written as a sum of positive squares in 4 ways, for example, as 376026504100 + 1608899443776 = 613210^2 + 1268424^2 .

It is a super-2 number, since 2×1984925947876² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1984925947796 and 1984925947805.

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 8 ways as a sum of consecutive naturals, for example, 724159866 + ... + 724162606.

Almost surely, 2^{1984925947876} is an apocalyptic number.

1984925947876 is the 1408874-th square number.

It is an amenable number.

1984925947876 is a deficient number, since it is larger than the sum of its proper divisors (1503535781751).

1984925947876 is an frugal number, since it uses more digits than its factorization.

1984925947876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000 (or 3000 counting only the distinct ones).

The product of its digits is 2194698240, while the sum is 79.

The spelling of 1984925947876 in words is "one trillion, nine hundred eighty-four billion, nine hundred twenty-five million, nine hundred forty-seven thousand, eight hundred seventy-six".