38154608172 has 192 divisors, whose sum is σ = 109247201280. Its totient is φ = 11462860800.

The previous prime is 38154608123. The next prime is 38154608179. The reversal of 38154608172 is 27180645183.

38154608172 is a `hidden beast` number, since 3 + 8 + 15 + 460 + 8 + 172 = 666.

It is not an unprimeable number, because it can be changed into a prime (38154608179) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5517397 + ... + 5524307.

It is an arithmetic number, because the mean of its divisors is an integer number (568995840).

Almost surely, 2^38154608172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38154608172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54623600640).

38154608172 is an abundant number, since it is smaller than the sum of its proper divisors (71092593108).

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

38154608172 is a wasteful number, since it uses less digits than its factorization.

38154608172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7069 (or 7061 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 38154608172 in words is "thirty-eight billion, one hundred fifty-four million, six hundred eight thousand, one hundred seventy-two".