5721634787 has 8 divisors (see below), whose sum is σ = 6570298560. Its totient is φ = 4927723560.

The previous prime is 5721634783. The next prime is 5721634811. The reversal of 5721634787 is 7874361275.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5721634787 - 2² = 5721634783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5721634783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13687913 + ... + 13688330.

It is an arithmetic number, because the mean of its divisors is an integer number (821287320).

Almost surely, 2^5721634787 is an apocalyptic number.

5721634787 is a deficient number, since it is larger than the sum of its proper divisors (848663773).

5721634787 is a wasteful number, since it uses less digits than its factorization.

5721634787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27376273.

The product of its digits is 1975680, while the sum is 50.

The square root of 5721634787 is about 75641.4885297745. The cubic root of 5721634787 is about 1788.5731674401.

The spelling of 5721634787 in words is "five billion, seven hundred twenty-one million, six hundred thirty-four thousand, seven hundred eighty-seven".