38782655648 has 96 divisors (see below), whose sum is σ = 86075136000. Its totient is φ = 17041248000.

The previous prime is 38782655573. The next prime is 38782655651. The reversal of 38782655648 is 84655628783.

It is a happy number.

It is a super-2 number, since 2×38782655648² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16355903 + ... + 16358273.

It is an arithmetic number, because the mean of its divisors is an integer number (896616000).

Almost surely, 2^38782655648 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 38782655648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43037568000).

38782655648 is an abundant number, since it is smaller than the sum of its proper divisors (47292480352).

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

38782655648 is a wasteful number, since it uses less digits than its factorization.

38782655648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3922 (or 3914 counting only the distinct ones).

The product of its digits is 77414400, while the sum is 62.

The spelling of 38782655648 in words is "thirty-eight billion, seven hundred eighty-two million, six hundred fifty-five thousand, six hundred forty-eight".