38898403707888 has 120 divisors (see below), whose sum is σ = 110164336114560. Its totient is φ = 12811842852480.

The previous prime is 38898403707887. The next prime is 38898403707923. The reversal of 38898403707888 is 88870730489883.

38898403707888 is a `hidden beast` number, since 3 + 88 + 98 + 4 + 0 + 370 + 7 + 8 + 88 = 666.

It is a super-2 number, since 2×38898403707888² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38898403707887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 381756 + ... + 8828507.

It is an arithmetic number, because the mean of its divisors is an integer number (918036134288).

Almost surely, 2^{38898403707888} 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 38898403707888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55082168057280).

38898403707888 is an abundant number, since it is smaller than the sum of its proper divisors (71265932406672).

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

38898403707888 is a wasteful number, since it uses less digits than its factorization.

38898403707888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9210627 (or 9210618 counting only the distinct ones).

The product of its (nonzero) digits is 4161798144, while the sum is 81.

The spelling of 38898403707888 in words is "thirty-eight trillion, eight hundred ninety-eight billion, four hundred three million, seven hundred seven thousand, eight hundred eighty-eight".