404143521543354 has 32 divisors (see below), whose sum is σ = 812061258402240. Its totient is φ = 134086050259200.

The previous prime is 404143521543347. The next prime is 404143521543367. The reversal of 404143521543354 is 453345125341404.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69577189 + ... + 75161640.

It is an arithmetic number, because the mean of its divisors is an integer number (25376914325070).

Almost surely, 2^{404143521543354} is an apocalyptic number.

404143521543354 is an abundant number, since it is smaller than the sum of its proper divisors (407917736858886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404143521543354 is a wasteful number, since it uses less digits than its factorization.

404143521543354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144741006.

The product of its (nonzero) digits is 6912000, while the sum is 48.

Adding to 404143521543354 its reverse (453345125341404), we get a palindrome (857488646884758).

The spelling of 404143521543354 in words is "four hundred four trillion, one hundred forty-three billion, five hundred twenty-one million, five hundred forty-three thousand, three hundred fifty-four".