3999991110001 has 8 divisors (see below), whose sum is σ = 4029146126208. Its totient is φ = 3970871160000.

The previous prime is 3999991109971. The next prime is 3999991110007. The reversal of 3999991110001 is 1000111999993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3999991110001 - 2³³ = 3991401175409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3999991110007) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8537560 + ... + 8993881.

It is an arithmetic number, because the mean of its divisors is an integer number (503643265776).

Almost surely, 2^{3999991110001} is an apocalyptic number.

It is an amenable number.

3999991110001 is a deficient number, since it is larger than the sum of its proper divisors (29155016207).

3999991110001 is a wasteful number, since it uses less digits than its factorization.

3999991110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17533103.

The product of its (nonzero) digits is 177147, while the sum is 52.

The spelling of 3999991110001 in words is "three trillion, nine hundred ninety-nine billion, nine hundred ninety-one million, one hundred ten thousand, one".