5667638780 has 48 divisors (see below), whose sum is σ = 12375205920. Its totient is φ = 2177726208.

The previous prime is 5667638749. The next prime is 5667638783. The reversal of 5667638780 is 878367665.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5667638783) 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, 89459 + ... + 139061.

It is an arithmetic number, because the mean of its divisors is an integer number (257816790).

Almost surely, 2^5667638780 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 5667638780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6187602960).

5667638780 is an abundant number, since it is smaller than the sum of its proper divisors (6707567140).

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

5667638780 is a wasteful number, since it uses less digits than its factorization.

5667638780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49838 (or 49836 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 56.

The square root of 5667638780 is about 75283.7218793014. The cubic root of 5667638780 is about 1782.9290222296.

The spelling of 5667638780 in words is "five billion, six hundred sixty-seven million, six hundred thirty-eight thousand, seven hundred eighty".