3984978660173 has 8 divisors (see below), whose sum is σ = 4554380533248. Its totient is φ = 3415606588944.

The previous prime is 3984978660139. The next prime is 3984978660217. The reversal of 3984978660173 is 3710668794893.

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 3984978660173 - 2³⁰ = 3983904918349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3984978660097 and 3984978660106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3984978660473) 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, 7163186 + ... + 7699427.

It is an arithmetic number, because the mean of its divisors is an integer number (569297566656).

Almost surely, 2^{3984978660173} is an apocalyptic number.

It is an amenable number.

3984978660173 is a deficient number, since it is larger than the sum of its proper divisors (569401873075).

3984978660173 is a wasteful number, since it uses less digits than its factorization.

3984978660173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14900923.

The product of its (nonzero) digits is 329204736, while the sum is 71.

The spelling of 3984978660173 in words is "three trillion, nine hundred eighty-four billion, nine hundred seventy-eight million, six hundred sixty thousand, one hundred seventy-three".