3993578579236 has 27 divisors (see below), whose sum is σ = 7062239973747. Its totient is φ = 1976011987200.

The previous prime is 3993578579219. The next prime is 3993578579257. The reversal of 3993578579236 is 6329758753993.

The square root of 3993578579236 is 1998394.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1044995062500 + 2948583516736 = 1022250^2 + 1717144^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 387683286 + ... + 387693586.

Almost surely, 2^{3993578579236} is an apocalyptic number.

3993578579236 is the 1998394-th square number.

It is an amenable number.

3993578579236 is a deficient number, since it is larger than the sum of its proper divisors (3068661394511).

3993578579236 is an frugal number, since it uses more digits than its factorization.

3993578579236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20800 (or 10400 counting only the distinct ones).

The product of its digits is 2314720800, while the sum is 76.

The spelling of 3993578579236 in words is "three trillion, nine hundred ninety-three billion, five hundred seventy-eight million, five hundred seventy-nine thousand, two hundred thirty-six".