38579657844 has 144 divisors (see below), whose sum is σ = 117674944128. Its totient is φ = 9732425472.

The previous prime is 38579657843. The next prime is 38579657849. The reversal of 38579657844 is 44875697583.

It is a super-3 number, since 3×38579657844³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38579657843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66094 + ... + 285530.

It is an arithmetic number, because the mean of its divisors is an integer number (817187112).

Almost surely, 2^38579657844 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 38579657844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58837472064).

38579657844 is an abundant number, since it is smaller than the sum of its proper divisors (79095286284).

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

38579657844 is a wasteful number, since it uses less digits than its factorization.

38579657844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219494 (or 219485 counting only the distinct ones).

The product of its digits is 203212800, while the sum is 66.

The spelling of 38579657844 in words is "thirty-eight billion, five hundred seventy-nine million, six hundred fifty-seven thousand, eight hundred forty-four".