1773946954816 has 21 divisors (see below), whose sum is σ = 3520197132439. Its totient is φ = 886968149824.

The previous prime is 1773946954783. The next prime is 1773946954817. The reversal of 1773946954816 is 6184596493771.

It is a happy number.

The square root of 1773946954816 is 1331896.

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 (1773946954817) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 10571925 + ... + 10738411.

Almost surely, 2^{1773946954816} is an apocalyptic number.

1773946954816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1773946954816 is the 1331896-th square number.

It is an amenable number.

1773946954816 is a deficient number, since it is larger than the sum of its proper divisors (1746250177623).

1773946954816 is an frugal number, since it uses more digits than its factorization.

1773946954816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332986 (or 166489 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 70.

The spelling of 1773946954816 in words is "one trillion, seven hundred seventy-three billion, nine hundred forty-six million, nine hundred fifty-four thousand, eight hundred sixteen".