1816920676624 has 15 divisors (see below), whose sum is σ = 3520294257463. Its totient is φ = 908457642448.

The previous prime is 1816920676577. The next prime is 1816920676631. The reversal of 1816920676624 is 4266760296181.

The square root of 1816920676624 is 1347932.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5223237 + ... + 5560219.

Almost surely, 2^{1816920676624} is an apocalyptic number.

1816920676624 is the 1347932-nd square number.

It is an amenable number.

1816920676624 is a deficient number, since it is larger than the sum of its proper divisors (1703373580839).

1816920676624 is an frugal number, since it uses more digits than its factorization.

1816920676624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673974 (or 336985 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 1816920676624 in words is "one trillion, eight hundred sixteen billion, nine hundred twenty million, six hundred seventy-six thousand, six hundred twenty-four".