5635867640 has 64 divisors (see below), whose sum is σ = 13755994560. Its totient is φ = 2065720320.

The previous prime is 5635867637. The next prime is 5635867651. The reversal of 5635867640 is 467685365.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 31685 + ... + 110795.

It is an arithmetic number, because the mean of its divisors is an integer number (214937415).

Almost surely, 2^5635867640 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 5635867640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6877997280).

5635867640 is an abundant number, since it is smaller than the sum of its proper divisors (8120126920).

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

5635867640 is a wasteful number, since it uses less digits than its factorization.

5635867640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79272 (or 79268 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 50.

The square root of 5635867640 is about 75072.4159728458. The cubic root of 5635867640 is about 1779.5912498294.

The spelling of 5635867640 in words is "five billion, six hundred thirty-five million, eight hundred sixty-seven thousand, six hundred forty".