5671956640 has 96 divisors (see below), whose sum is σ = 15408731520. Its totient is φ = 1932678144.

The previous prime is 5671956599. The next prime is 5671956659. The reversal of 5671956640 is 466591765.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167026 + ... + 198094.

It is an arithmetic number, because the mean of its divisors is an integer number (160507620).

Almost surely, 2^5671956640 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 5671956640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7704365760).

5671956640 is an abundant number, since it is smaller than the sum of its proper divisors (9736774880).

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

5671956640 is a wasteful number, since it uses less digits than its factorization.

5671956640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31254 (or 31246 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 49.

The square root of 5671956640 is about 75312.3936679747. The cubic root of 5671956640 is about 1783.3816789137.

The spelling of 5671956640 in words is "five billion, six hundred seventy-one million, nine hundred fifty-six thousand, six hundred forty".