38855646528 has 112 divisors (see below), whose sum is σ = 107396499456. Its totient is φ = 12374771200.

The previous prime is 38855646521. The next prime is 38855646547. The reversal of 38855646528 is 82564655883.

It is a happy number.

It is a super-2 number, since 2×38855646528² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38855646521) 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, 4336453 + ... + 4345403.

Almost surely, 2^38855646528 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 38855646528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53698249728).

38855646528 is an abundant number, since it is smaller than the sum of its proper divisors (68540852928).

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

38855646528 is a wasteful number, since it uses less digits than its factorization.

38855646528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9972 (or 9962 counting only the distinct ones).

The product of its digits is 55296000, while the sum is 60.

The spelling of 38855646528 in words is "thirty-eight billion, eight hundred fifty-five million, six hundred forty-six thousand, five hundred twenty-eight".