3878338706433 has 48 divisors (see below), whose sum is σ = 5752861650432. Its totient is φ = 2517011280000.

The previous prime is 3878338706419. The next prime is 3878338706441. The reversal of 3878338706433 is 3346078338783.

3878338706433 is a `hidden beast` number, since 38 + 78 + 3 + 38 + 70 + 6 + 433 = 666.

It is not a de Polignac number, because 3878338706433 - 2⁵ = 3878338706401 is a prime.

It is a super-2 number, since 2×3878338706433² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3878338706933) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23603943 + ... + 23767683.

It is an arithmetic number, because the mean of its divisors is an integer number (119851284384).

Almost surely, 2^{3878338706433} is an apocalyptic number.

It is an amenable number.

3878338706433 is a deficient number, since it is larger than the sum of its proper divisors (1874522943999).

3878338706433 is a wasteful number, since it uses less digits than its factorization.

3878338706433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164286 (or 164283 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 63.

The spelling of 3878338706433 in words is "three trillion, eight hundred seventy-eight billion, three hundred thirty-eight million, seven hundred six thousand, four hundred thirty-three".