3965043289680 has 240 divisors, whose sum is σ = 14531949110016. Its totient is φ = 960860513280.

The previous prime is 3965043289643. The next prime is 3965043289759. The reversal of 3965043289680 is 869823405693.

3965043289680 is a `hidden beast` number, since 3 + 9 + 6 + 504 + 32 + 8 + 96 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21235609 + ... + 21421511.

Almost surely, 2^{3965043289680} is an apocalyptic number.

3965043289680 is a gapful number since it is divisible by the number (30) 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 3965043289680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7265974555008).

3965043289680 is an abundant number, since it is smaller than the sum of its proper divisors (10566905820336).

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

3965043289680 is a wasteful number, since it uses less digits than its factorization.

3965043289680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188626 (or 188617 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 63.

The spelling of 3965043289680 in words is "three trillion, nine hundred sixty-five billion, forty-three million, two hundred eighty-nine thousand, six hundred eighty".