5721651800 has 24 divisors (see below), whose sum is σ = 13302840900. Its totient is φ = 2288660640.

The previous prime is 5721651799. The next prime is 5721651821. The reversal of 5721651800 is 81561275.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14303930 + ... + 14304329.

Almost surely, 2^5721651800 is an apocalyptic number.

5721651800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5721651800 is an abundant number, since it is smaller than the sum of its proper divisors (7581189100).

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

5721651800 is a wasteful number, since it uses less digits than its factorization.

5721651800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28608275 (or 28608266 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 35.

The square root of 5721651800 is about 75641.6009878162. The cubic root of 5721651800 is about 1788.5749401831.

The spelling of 5721651800 in words is "five billion, seven hundred twenty-one million, six hundred fifty-one thousand, eight hundred".