1677728064673 has 8 divisors (see below), whose sum is σ = 1693436673600. Its totient is φ = 1662019991280.

The previous prime is 1677728064671. The next prime is 1677728064707. The reversal of 1677728064673 is 3764608277761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1677728064673 - 2¹ = 1677728064671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1677728064671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9175563 + ... + 9356623.

It is an arithmetic number, because the mean of its divisors is an integer number (211679584200).

Almost surely, 2^{1677728064673} is an apocalyptic number.

It is an amenable number.

1677728064673 is a deficient number, since it is larger than the sum of its proper divisors (15708608927).

1677728064673 is a wasteful number, since it uses less digits than its factorization.

1677728064673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267767.

The product of its (nonzero) digits is 99574272, while the sum is 64.

The spelling of 1677728064673 in words is "one trillion, six hundred seventy-seven billion, seven hundred twenty-eight million, sixty-four thousand, six hundred seventy-three".