5401541121543 has 24 divisors (see below), whose sum is σ = 8932020359808. Its totient is φ = 3081336651792.

The previous prime is 5401541121539. The next prime is 5401541121551. The reversal of 5401541121543 is 3451211451045.

5401541121543 is a `hidden beast` number, since 5 + 40 + 1 + 54 + 1 + 1 + 21 + 543 = 666.

It is not a de Polignac number, because 5401541121543 - 2² = 5401541121539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5401541121498 and 5401541121507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5401541121043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72994321 + ... + 73068282.

It is an arithmetic number, because the mean of its divisors is an integer number (372167514992).

Almost surely, 2^{5401541121543} is an apocalyptic number.

5401541121543 is a deficient number, since it is larger than the sum of its proper divisors (3530479238265).

5401541121543 is a wasteful number, since it uses less digits than its factorization.

5401541121543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146063203 (or 146063200 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 5401541121543 its reverse (3451211451045), we get a palindrome (8852752572588).

The spelling of 5401541121543 in words is "five trillion, four hundred one billion, five hundred forty-one million, one hundred twenty-one thousand, five hundred forty-three".