38905029888 has 144 divisors (see below), whose sum is σ = 111653908800. Its totient is φ = 11985960960.

The previous prime is 38905029883. The next prime is 38905029899. The reversal of 38905029888 is 88892050983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38905029883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 565758 + ... + 630786.

Almost surely, 2^38905029888 is an apocalyptic number.

38905029888 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38905029888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55826954400).

38905029888 is an abundant number, since it is smaller than the sum of its proper divisors (72748878912).

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

38905029888 is a wasteful number, since it uses less digits than its factorization.

38905029888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65108 (or 65094 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 60.

The spelling of 38905029888 in words is "thirty-eight billion, nine hundred five million, twenty-nine thousand, eight hundred eighty-eight".