531554605141243 has 8 divisors (see below), whose sum is σ = 540382278623040. Its totient is φ = 522798410797320.

The previous prime is 531554605141151. The next prime is 531554605141247. The reversal of 531554605141243 is 342141506455135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531554605141243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531554605141247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17869769473 + ... + 17869799218.

It is an arithmetic number, because the mean of its divisors is an integer number (67547784827880).

Almost surely, 2^{531554605141243} is an apocalyptic number.

531554605141243 is a deficient number, since it is larger than the sum of its proper divisors (8827673481797).

531554605141243 is a wasteful number, since it uses less digits than its factorization.

531554605141243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35739568937.

The product of its (nonzero) digits is 4320000, while the sum is 49.

The spelling of 531554605141243 in words is "five hundred thirty-one trillion, five hundred fifty-four billion, six hundred five million, one hundred forty-one thousand, two hundred forty-three".