3993601522873 has 4 divisors (see below), whose sum is σ = 3993605527780. Its totient is φ = 3993597517968.

The previous prime is 3993601522853. The next prime is 3993601522877. The reversal of 3993601522873 is 3782251063993.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1949410741369 + 2044190781504 = 1396213^2 + 1429752^2 .

It is a cyclic number.

It is not a de Polignac number, because 3993601522873 - 2¹³ = 3993601514681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3993601522877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810211 + ... + 2940007.

It is an arithmetic number, because the mean of its divisors is an integer number (998401381945).

Almost surely, 2^{3993601522873} is an apocalyptic number.

It is an amenable number.

3993601522873 is a deficient number, since it is larger than the sum of its proper divisors (4004907).

3993601522873 is a wasteful number, since it uses less digits than its factorization.

3993601522873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004906.

The product of its (nonzero) digits is 14696640, while the sum is 58.

The spelling of 3993601522873 in words is "three trillion, nine hundred ninety-three billion, six hundred one million, five hundred twenty-two thousand, eight hundred seventy-three".