38705401917 has 48 divisors (see below), whose sum is σ = 68856173568. Its totient is φ = 20402219520.

The previous prime is 38705401907. The next prime is 38705401937. The reversal of 38705401917 is 71910450783.

38705401917 is a `hidden beast` number, since 3 + 87 + 0 + 540 + 19 + 17 = 666.

It is not a de Polignac number, because 38705401917 - 2¹⁴ = 38705385533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38705401907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1256692 + ... + 1287122.

It is an arithmetic number, because the mean of its divisors is an integer number (1434503616).

Almost surely, 2^38705401917 is an apocalyptic number.

It is an amenable number.

38705401917 is a deficient number, since it is larger than the sum of its proper divisors (30150771651).

38705401917 is a wasteful number, since it uses less digits than its factorization.

38705401917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32010 (or 32007 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 38705401917 in words is "thirty-eight billion, seven hundred five million, four hundred one thousand, nine hundred seventeen".