5853721421 has 4 divisors (see below), whose sum is σ = 6108231072. Its totient is φ = 5599211772.

The previous prime is 5853721411. The next prime is 5853721463. The reversal of 5853721421 is 1241273585.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1241273585 = 5 ⋅248254717.

It is a cyclic number.

It is not a de Polignac number, because 5853721421 - 2³⁰ = 4779979597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5853721411) 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, 127254791 + ... + 127254836.

It is an arithmetic number, because the mean of its divisors is an integer number (1527057768).

Almost surely, 2^5853721421 is an apocalyptic number.

It is an amenable number.

5853721421 is a deficient number, since it is larger than the sum of its proper divisors (254509651).

5853721421 is a wasteful number, since it uses less digits than its factorization.

5853721421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254509650.

The product of its digits is 67200, while the sum is 38.

The square root of 5853721421 is about 76509.6165262903. The cubic root of 5853721421 is about 1802.2319454062.

The spelling of 5853721421 in words is "five billion, eight hundred fifty-three million, seven hundred twenty-one thousand, four hundred twenty-one".