3961208489472 has 720 divisors, whose sum is σ = 13397670494208. Its totient is φ = 1165698293760.

The previous prime is 3961208489471. The next prime is 3961208489521. The reversal of 3961208489472 is 2749848021693.

3961208489472 is a `hidden beast` number, since 3 + 9 + 6 + 1 + 2 + 0 + 84 + 89 + 472 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3961208489471) 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 71 ways as a sum of consecutive naturals, for example, 483600897 + ... + 483609087.

Almost surely, 2^{3961208489472} is an apocalyptic number.

3961208489472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3961208489472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6698835247104).

3961208489472 is an abundant number, since it is smaller than the sum of its proper divisors (9436462004736).

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

3961208489472 is an equidigital number, since it uses as much as digits as its factorization.

3961208489472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8273 (or 8232 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 3961208489472 in words is "three trillion, nine hundred sixty-one billion, two hundred eight million, four hundred eighty-nine thousand, four hundred seventy-two".