3991032442312 has 16 divisors (see below), whose sum is σ = 7483226612400. Its totient is φ = 1995505345680.

The previous prime is 3991032442297. The next prime is 3991032442333. The reversal of 3991032442312 is 2132442301993.

It is a super-3 number, since 3×3991032442312³ (a number of 39 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322639 + ... + 2843617.

It is an arithmetic number, because the mean of its divisors is an integer number (467701663275).

Almost surely, 2^{3991032442312} is an apocalyptic number.

It is an amenable number.

3991032442312 is a deficient number, since it is larger than the sum of its proper divisors (3492194170088).

3991032442312 is a wasteful number, since it uses less digits than its factorization.

3991032442312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718876 (or 2718872 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 43.

It can be divided in two parts, 3991032 and 442312, that added together give a palindrome (4433344).

The spelling of 3991032442312 in words is "three trillion, nine hundred ninety-one billion, thirty-two million, four hundred forty-two thousand, three hundred twelve".