3943738118836 has 12 divisors (see below), whose sum is σ = 7201608738912. Its totient is φ = 1886135622008.

The previous prime is 3943738118783. The next prime is 3943738118849. The reversal of 3943738118836 is 6388118373493.

It is a super-2 number, since 2×3943738118836² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 21433359250 + ... + 21433359433.

It is an arithmetic number, because the mean of its divisors is an integer number (600134061576).

Almost surely, 2^{3943738118836} is an apocalyptic number.

It is an amenable number.

3943738118836 is a deficient number, since it is larger than the sum of its proper divisors (3257870620076).

3943738118836 is a wasteful number, since it uses less digits than its factorization.

3943738118836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42866718710 (or 42866718708 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 64.

The spelling of 3943738118836 in words is "three trillion, nine hundred forty-three billion, seven hundred thirty-eight million, one hundred eighteen thousand, eight hundred thirty-six".