38449471608 has 128 divisors (see below), whose sum is σ = 115493299200. Its totient is φ = 11805875712.

The previous prime is 38449471573. The next prime is 38449471649. The reversal of 38449471608 is 80617494483.

38449471608 is a `hidden beast` number, since 3 + 84 + 494 + 71 + 6 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61191 + ... + 283977.

It is an arithmetic number, because the mean of its divisors is an integer number (902291400).

Almost surely, 2^38449471608 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 38449471608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57746649600).

38449471608 is an abundant number, since it is smaller than the sum of its proper divisors (77043827592).

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

38449471608 is a wasteful number, since it uses less digits than its factorization.

38449471608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222866 (or 222856 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 38449471608 in words is "thirty-eight billion, four hundred forty-nine million, four hundred seventy-one thousand, six hundred eight".