4457143218541 has 4 divisors (see below), whose sum is σ = 4800000389212. Its totient is φ = 4114286047872.

The previous prime is 4457143218523. The next prime is 4457143218551. The reversal of 4457143218541 is 1458123417544.

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 750155193225 + 3706988025316 = 866115^2 + 1925354^2 .

It is not a de Polignac number, because 4457143218541 - 2¹⁹ = 4457142694253 is a prime.

It is a super-2 number, since 2×4457143218541² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4457143218511) 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, 171428585316 + ... + 171428585341.

It is an arithmetic number, because the mean of its divisors is an integer number (1200000097303).

Almost surely, 2^{4457143218541} is an apocalyptic number.

It is an amenable number.

4457143218541 is a deficient number, since it is larger than the sum of its proper divisors (342857170671).

4457143218541 is a wasteful number, since it uses less digits than its factorization.

4457143218541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342857170670.

The product of its digits is 2150400, while the sum is 49.

The spelling of 4457143218541 in words is "four trillion, four hundred fifty-seven billion, one hundred forty-three million, two hundred eighteen thousand, five hundred forty-one".