5171442144821 has 4 divisors (see below), whose sum is σ = 5181723342432. Its totient is φ = 5161160947212.

The previous prime is 5171442144811. The next prime is 5171442144839. The reversal of 5171442144821 is 1284412441715.

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 5171442144821 - 2³⁴ = 5154262275637 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 (5171442144811) 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, 5140598051 + ... + 5140599056.

It is an arithmetic number, because the mean of its divisors is an integer number (1295430835608).

Almost surely, 2^{5171442144821} is an apocalyptic number.

It is an amenable number.

5171442144821 is a deficient number, since it is larger than the sum of its proper divisors (10281197611).

5171442144821 is a wasteful number, since it uses less digits than its factorization.

5171442144821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10281197610.

The product of its digits is 286720, while the sum is 44.

The spelling of 5171442144821 in words is "five trillion, one hundred seventy-one billion, four hundred forty-two million, one hundred forty-four thousand, eight hundred twenty-one".