38564287680 has 448 divisors, whose sum is σ = 133410521088. Its totient is φ = 9409720320.

The previous prime is 38564287639. The next prime is 38564287747. The reversal of 38564287680 is 8678246583.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 38564287680.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 70501167 + ... + 70501713.

Almost surely, 2^38564287680 is an apocalyptic number.

38564287680 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 38564287680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66705260544).

38564287680 is an abundant number, since it is smaller than the sum of its proper divisors (94846233408).

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

38564287680 is a wasteful number, since it uses less digits than its factorization.

38564287680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 38564287680 in words is "thirty-eight billion, five hundred sixty-four million, two hundred eighty-seven thousand, six hundred eighty".