38643848477208 has 512 divisors, whose sum is σ = 125134377984000. Its totient is φ = 10955523870720.

The previous prime is 38643848477153. The next prime is 38643848477233. The reversal of 38643848477208 is 80277484834683.

38643848477208 is a `hidden beast` number, since 3 + 8 + 64 + 38 + 48 + 477 + 20 + 8 = 666.

It is a super-2 number, since 2×38643848477208² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 209095210 + ... + 209279942.

It is an arithmetic number, because the mean of its divisors is an integer number (244403082000).

Almost surely, 2^{38643848477208} 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 38643848477208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62567188992000).

38643848477208 is an abundant number, since it is smaller than the sum of its proper divisors (86490529506792).

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

38643848477208 is a wasteful number, since it uses less digits than its factorization.

38643848477208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184904 (or 184894 counting only the distinct ones).

The product of its (nonzero) digits is 1387266048, while the sum is 72.

The spelling of 38643848477208 in words is "thirty-eight trillion, six hundred forty-three billion, eight hundred forty-eight million, four hundred seventy-seven thousand, two hundred eight".