381710138517 has 24 divisors (see below), whose sum is σ = 575425968000. Its totient is φ = 243369279648.

The previous prime is 381710138497. The next prime is 381710138519. The reversal of 381710138517 is 715831017183.

381710138517 is a `hidden beast` number, since 38 + 1 + 71 + 0 + 1 + 38 + 517 = 666.

It is not a de Polignac number, because 381710138517 - 2¹⁰ = 381710137493 is a prime.

It is a super-3 number, since 3×381710138517³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381710138519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1134459 + ... + 1431927.

It is an arithmetic number, because the mean of its divisors is an integer number (23976082000).

Almost surely, 2^381710138517 is an apocalyptic number.

It is an amenable number.

381710138517 is a deficient number, since it is larger than the sum of its proper divisors (193715829483).

381710138517 is a wasteful number, since it uses less digits than its factorization.

381710138517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303697 (or 303694 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The spelling of 381710138517 in words is "three hundred eighty-one billion, seven hundred ten million, one hundred thirty-eight thousand, five hundred seventeen".