5837724721 has 4 divisors (see below), whose sum is σ = 5844569332. Its totient is φ = 5830880112.

The previous prime is 5837724661. The next prime is 5837724727. The reversal of 5837724721 is 1274277385.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2868673600 + 2969051121 = 53560^2 + 54489^2 .

It is a cyclic number.

It is not a de Polignac number, because 5837724721 - 2⁷ = 5837724593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5837724727) 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, 3421026 + ... + 3422731.

It is an arithmetic number, because the mean of its divisors is an integer number (1461142333).

Almost surely, 2^5837724721 is an apocalyptic number.

It is an amenable number.

5837724721 is a deficient number, since it is larger than the sum of its proper divisors (6844611).

5837724721 is an equidigital number, since it uses as much as digits as its factorization.

5837724721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6844610.

The product of its digits is 658560, while the sum is 46.

The square root of 5837724721 is about 76405.0045546756. The cubic root of 5837724721 is about 1800.5887704611.

The spelling of 5837724721 in words is "five billion, eight hundred thirty-seven million, seven hundred twenty-four thousand, seven hundred twenty-one".