38542046620 has 144 divisors (see below), whose sum is σ = 103255326720. Its totient is φ = 11949571200.

The previous prime is 38542046561. The next prime is 38542046623. The reversal of 38542046620 is 2664024583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38542046623) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2049621 + ... + 2068339.

It is an arithmetic number, because the mean of its divisors is an integer number (717050880).

Almost surely, 2^38542046620 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 38542046620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51627663360).

38542046620 is an abundant number, since it is smaller than the sum of its proper divisors (64713280100).

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

38542046620 is a wasteful number, since it uses less digits than its factorization.

38542046620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18944 (or 18935 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 38542046620 in words is "thirty-eight billion, five hundred forty-two million, forty-six thousand, six hundred twenty".