531072232473 has 4 divisors (see below), whose sum is σ = 708096309968. Its totient is φ = 354048154980.

The previous prime is 531072232441. The next prime is 531072232501. The reversal of 531072232473 is 374232270135.

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 531072232473 - 2⁵ = 531072232441 is a prime.

It is a super-2 number, since 2×531072232473² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (531072232573) 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, 88512038743 + ... + 88512038748.

It is an arithmetic number, because the mean of its divisors is an integer number (177024077492).

Almost surely, 2^531072232473 is an apocalyptic number.

It is an amenable number.

531072232473 is a deficient number, since it is larger than the sum of its proper divisors (177024077495).

531072232473 is a wasteful number, since it uses less digits than its factorization.

531072232473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177024077494.

The product of its (nonzero) digits is 211680, while the sum is 39.

The spelling of 531072232473 in words is "five hundred thirty-one billion, seventy-two million, two hundred thirty-two thousand, four hundred seventy-three".