531584789479 has 4 divisors (see below), whose sum is σ = 531711331360. Its totient is φ = 531458247600.

The previous prime is 531584789453. The next prime is 531584789497. The reversal of 531584789479 is 974987485135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 531584789479 - 2²¹ = 531582692327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531584786479) 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, 63264639 + ... + 63273040.

It is an arithmetic number, because the mean of its divisors is an integer number (132927832840).

Almost surely, 2^531584789479 is an apocalyptic number.

531584789479 is a deficient number, since it is larger than the sum of its proper divisors (126541881).

531584789479 is a wasteful number, since it uses less digits than its factorization.

531584789479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126541880.

The product of its digits is 304819200, while the sum is 70.

The spelling of 531584789479 in words is "five hundred thirty-one billion, five hundred eighty-four million, seven hundred eighty-nine thousand, four hundred seventy-nine".