38916778944 has 112 divisors (see below), whose sum is σ = 105201610272. Its totient is φ = 12692140032.

The previous prime is 38916778933. The next prime is 38916778951. The reversal of 38916778944 is 44987761983.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3790522 + ... + 3800774.

Almost surely, 2^38916778944 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 38916778944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52600805136).

38916778944 is an abundant number, since it is smaller than the sum of its proper divisors (66284831328).

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

38916778944 is a wasteful number, since it uses less digits than its factorization.

38916778944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10694 (or 10684 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 66.

The spelling of 38916778944 in words is "thirty-eight billion, nine hundred sixteen million, seven hundred seventy-eight thousand, nine hundred forty-four".