531541351533441 has 4 divisors (see below), whose sum is σ = 708721802044592. Its totient is φ = 354360901022292.

The previous prime is 531541351533419. The next prime is 531541351533443. The reversal of 531541351533441 is 144335153145135.

It is a happy number.

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 not a de Polignac number, because 531541351533441 - 2⁶ = 531541351533377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531541351533443) 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, 88590225255571 + ... + 88590225255576.

It is an arithmetic number, because the mean of its divisors is an integer number (177180450511148).

Almost surely, 2^{531541351533441} is an apocalyptic number.

It is an amenable number.

531541351533441 is a deficient number, since it is larger than the sum of its proper divisors (177180450511151).

531541351533441 is a wasteful number, since it uses less digits than its factorization.

531541351533441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177180450511150.

The product of its digits is 3240000, while the sum is 48.

The spelling of 531541351533441 in words is "five hundred thirty-one trillion, five hundred forty-one billion, three hundred fifty-one million, five hundred thirty-three thousand, four hundred forty-one".