38784522181 has 8 divisors (see below), whose sum is σ = 38874083328. Its totient is φ = 38695020000.

The previous prime is 38784522151. The next prime is 38784522233. The reversal of 38784522181 is 18122548783.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38784522181 - 2⁵ = 38784522149 is a prime.

It is a super-2 number, since 2×38784522181² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38784522131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472316 + ... + 1498426.

It is an arithmetic number, because the mean of its divisors is an integer number (4859260416).

Almost surely, 2^38784522181 is an apocalyptic number.

It is an amenable number.

38784522181 is a deficient number, since it is larger than the sum of its proper divisors (89561147).

38784522181 is a wasteful number, since it uses less digits than its factorization.

38784522181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29483.

The product of its digits is 860160, while the sum is 49.

The spelling of 38784522181 in words is "thirty-eight billion, seven hundred eighty-four million, five hundred twenty-two thousand, one hundred eighty-one".