3964793856 has 264 divisors, whose sum is σ = 11708184960. Its totient is φ = 1188495360.

The previous prime is 3964793803. The next prime is 3964793891. The reversal of 3964793856 is 6583974693.

It is a self number, because there is not a number n which added to its sum of digits gives 3964793856.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50187225 + ... + 50187303.

Almost surely, 2^3964793856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3964793856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5854092480).

3964793856 is an abundant number, since it is smaller than the sum of its proper divisors (7743391104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3964793856 is a wasteful number, since it uses less digits than its factorization.

3964793856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 132 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 60.

The square root of 3964793856 is about 62966.6090559115. The cubic root of 3964793856 is about 1582.7301321216.

The spelling of 3964793856 in words is "three billion, nine hundred sixty-four million, seven hundred ninety-three thousand, eight hundred fifty-six".