38340819708813 has 12 divisors (see below), whose sum is σ = 55381331901948. Its totient is φ = 25560478221120.

The previous prime is 38340819708757. The next prime is 38340819708857. The reversal of 38340819708813 is 31880791804383.

38340819708813 is a `hidden beast` number, since 3 + 83 + 408 + 1 + 9 + 70 + 8 + 81 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 31352182887204 + 6988636821609 = 5599302^2 + 2643603^2 .

It is not a de Polignac number, because 38340819708813 - 2⁶ = 38340819708749 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38340819708613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2004270 + ... + 8983247.

It is an arithmetic number, because the mean of its divisors is an integer number (4615110991829).

Almost surely, 2^{38340819708813} is an apocalyptic number.

It is an amenable number.

38340819708813 is a deficient number, since it is larger than the sum of its proper divisors (17040512193135).

38340819708813 is a wasteful number, since it uses less digits than its factorization.

38340819708813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11375244 (or 11375241 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 38340819708813 in words is "thirty-eight trillion, three hundred forty billion, eight hundred nineteen million, seven hundred eight thousand, eight hundred thirteen".