3894248081673 has 36 divisors (see below), whose sum is σ = 5983527455308. Its totient is φ = 2440115089920.

The previous prime is 3894248081663. The next prime is 3894248081681. The reversal of 3894248081673 is 3761808424983.

3894248081673 is a `hidden beast` number, since 3 + 8 + 9 + 4 + 2 + 480 + 81 + 6 + 73 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 651050493129 + 3243197588544 = 806877^2 + 1800888^2 .

It is not a de Polignac number, because 3894248081673 - 2⁴ = 3894248081657 is a prime.

It is a super-2 number, since 2×3894248081673² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3894248081673.

It is not an unprimeable number, because it can be changed into a prime (3894248081663) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 885243 + ... + 2927823.

Almost surely, 2^{3894248081673} is an apocalyptic number.

It is an amenable number.

3894248081673 is a deficient number, since it is larger than the sum of its proper divisors (2089279373635).

3894248081673 is a wasteful number, since it uses less digits than its factorization.

3894248081673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043354 (or 2043334 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 3894248081673 in words is "three trillion, eight hundred ninety-four billion, two hundred forty-eight million, eighty-one thousand, six hundred seventy-three".