5721381197 has 4 divisors (see below), whose sum is σ = 6538721376. Its totient is φ = 4904041020.

The previous prime is 5721381179. The next prime is 5721381223. The reversal of 5721381197 is 7911831275.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5721381197 - 2⁸ = 5721380941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5721381397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408670079 + ... + 408670092.

It is an arithmetic number, because the mean of its divisors is an integer number (1634680344).

Almost surely, 2^5721381197 is an apocalyptic number.

It is an amenable number.

5721381197 is a deficient number, since it is larger than the sum of its proper divisors (817340179).

5721381197 is an equidigital number, since it uses as much as digits as its factorization.

5721381197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817340178.

The product of its digits is 105840, while the sum is 44.

The square root of 5721381197 is about 75639.8122485771. The cubic root of 5721381197 is about 1788.5467431174.

The spelling of 5721381197 in words is "five billion, seven hundred twenty-one million, three hundred eighty-one thousand, one hundred ninety-seven".