3994580817597 has 32 divisors (see below), whose sum is σ = 5663595294720. Its totient is φ = 2497290644160.

The previous prime is 3994580817593. The next prime is 3994580817611. The reversal of 3994580817597 is 7957180854993.

3994580817597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3994580817597 - 2² = 3994580817593 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3994580817593) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1504972 + ... + 3202202.

It is an arithmetic number, because the mean of its divisors is an integer number (176987352960).

Almost surely, 2^{3994580817597} is an apocalyptic number.

It is an amenable number.

3994580817597 is a deficient number, since it is larger than the sum of its proper divisors (1669014477123).

3994580817597 is a wasteful number, since it uses less digits than its factorization.

3994580817597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697673.

The product of its (nonzero) digits is 685843200, while the sum is 75.

The spelling of 3994580817597 in words is "three trillion, nine hundred ninety-four billion, five hundred eighty million, eight hundred seventeen thousand, five hundred ninety-seven".