38356539720 has 128 divisors (see below), whose sum is σ = 121262365440. Its totient is φ = 9686758400.

The previous prime is 38356539707. The next prime is 38356539751. The reversal of 38356539720 is 2793565383.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209962 + ... + 347558.

It is an arithmetic number, because the mean of its divisors is an integer number (947362230).

Almost surely, 2^38356539720 is an apocalyptic number.

38356539720 is a gapful number since it is divisible by the number (30) 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 38356539720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60631182720).

38356539720 is an abundant number, since it is smaller than the sum of its proper divisors (82905825720).

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

38356539720 is a wasteful number, since it uses less digits than its factorization.

38356539720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137735 (or 137731 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 51.

The spelling of 38356539720 in words is "thirty-eight billion, three hundred fifty-six million, five hundred thirty-nine thousand, seven hundred twenty".