38766138543 has 40 divisors (see below), whose sum is σ = 63311567616. Its totient is φ = 23443635600.

The previous prime is 38766138511. The next prime is 38766138553. The reversal of 38766138543 is 34583166783.

38766138543 is a `hidden beast` number, since 3 + 8 + 7 + 6 + 61 + 38 + 543 = 666.

It is not a de Polignac number, because 38766138543 - 2⁵ = 38766138511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38766138543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38766138553) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 365548 + ... + 459518.

Almost surely, 2^38766138543 is an apocalyptic number.

38766138543 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

38766138543 is a deficient number, since it is larger than the sum of its proper divisors (24545429073).

38766138543 is a wasteful number, since it uses less digits than its factorization.

38766138543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94457 (or 94448 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 38766138543 in words is "thirty-eight billion, seven hundred sixty-six million, one hundred thirty-eight thousand, five hundred forty-three".