3981196996 has 96 divisors (see below), whose sum is σ = 8534937600. Its totient is φ = 1587133440.

The previous prime is 3981196991. The next prime is 3981196997. The reversal of 3981196996 is 6996911893.

It is not an unprimeable number, because it can be changed into a prime (3981196991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9236901 + ... + 9237331.

It is an arithmetic number, because the mean of its divisors is an integer number (88905600).

Almost surely, 2^3981196996 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 3981196996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4267468800).

3981196996 is an abundant number, since it is smaller than the sum of its proper divisors (4553740604).

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

3981196996 is a wasteful number, since it uses less digits than its factorization.

3981196996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737 (or 735 counting only the distinct ones).

The product of its digits is 5668704, while the sum is 61.

The square root of 3981196996 is about 63096.7273002333. The cubic root of 3981196996 is about 1584.9098186309.

The spelling of 3981196996 in words is "three billion, nine hundred eighty-one million, one hundred ninety-six thousand, nine hundred ninety-six".