3991072885760 has 176 divisors, whose sum is σ = 10181775445344. Its totient is φ = 1495895113728.

The previous prime is 3991072885721. The next prime is 3991072885829. The reversal of 3991072885760 is 675882701993.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19657082 + ... + 19859078.

Almost surely, 2^{3991072885760} 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 3991072885760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5090887722672).

3991072885760 is an abundant number, since it is smaller than the sum of its proper divisors (6190702559584).

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

3991072885760 is a wasteful number, since it uses less digits than its factorization.

3991072885760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202266 (or 202248 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 65.

The spelling of 3991072885760 in words is "three trillion, nine hundred ninety-one billion, seventy-two million, eight hundred eighty-five thousand, seven hundred sixty".