4004650378561 has 8 divisors (see below), whose sum is σ = 4583038678400. Its totient is φ = 3427835925888.

The previous prime is 4004650378543. The next prime is 4004650378607. The reversal of 4004650378561 is 1658730564004.

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 4004650378561 - 2¹⁵ = 4004650345793 is a prime.

It is a super-3 number, since 3×4004650378561³ (a number of 39 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (4004650378501) 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, 393456336 + ... + 393466513.

It is an arithmetic number, because the mean of its divisors is an integer number (572879834800).

Almost surely, 2^{4004650378561} is an apocalyptic number.

It is an amenable number.

4004650378561 is a deficient number, since it is larger than the sum of its proper divisors (578388299839).

4004650378561 is an equidigital number, since it uses as much as digits as its factorization.

4004650378561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786923583.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 4004650378561 in words is "four trillion, four billion, six hundred fifty million, three hundred seventy-eight thousand, five hundred sixty-one".