3945334446211 has 4 divisors (see below), whose sum is σ = 3945339167472. Its totient is φ = 3945329724952.

The previous prime is 3945334446197. The next prime is 3945334446269. The reversal of 3945334446211 is 1126444335493.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3945334446211 - 2¹⁵ = 3945334413443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3945334446511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 733135 + ... + 2903128.

It is an arithmetic number, because the mean of its divisors is an integer number (986334791868).

Almost surely, 2^{3945334446211} is an apocalyptic number.

3945334446211 is a deficient number, since it is larger than the sum of its proper divisors (4721261).

3945334446211 is a wasteful number, since it uses less digits than its factorization.

3945334446211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4721260.

The product of its digits is 3732480, while the sum is 49.

The spelling of 3945334446211 in words is "three trillion, nine hundred forty-five billion, three hundred thirty-four million, four hundred forty-six thousand, two hundred eleven".