38684347272 has 48 divisors (see below), whose sum is σ = 104790744240. Its totient is φ = 12892242528.

The previous prime is 38684347271. The next prime is 38684347309. The reversal of 38684347272 is 27274348683.

It is a happy number.

38684347272 is a `hidden beast` number, since 3 + 8 + 68 + 43 + 472 + 72 = 666.

It is not an unprimeable number, because it can be changed into a prime (38684347271) 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, 334743 + ... + 435225.

It is an arithmetic number, because the mean of its divisors is an integer number (2183140505).

Almost surely, 2^38684347272 is an apocalyptic number.

It is an amenable number.

38684347272 is an abundant number, since it is smaller than the sum of its proper divisors (66106396968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38684347272 is a wasteful number, since it uses less digits than its factorization.

38684347272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105842 (or 105835 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 54.

The spelling of 38684347272 in words is "thirty-eight billion, six hundred eighty-four million, three hundred forty-seven thousand, two hundred seventy-two".