531579479479 has 8 divisors (see below), whose sum is σ = 561160670000. Its totient is φ = 502158621312.

The previous prime is 531579479471. The next prime is 531579479527. The reversal of 531579479479 is 974974975135.

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

It is a cyclic number.

It is not a de Polignac number, because 531579479479 - 2³ = 531579479471 is a prime.

It is a super-2 number, since 2×531579479479² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531579479471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40076274 + ... + 40089535.

It is an arithmetic number, because the mean of its divisors is an integer number (70145083750).

Almost surely, 2^531579479479 is an apocalyptic number.

531579479479 is a deficient number, since it is larger than the sum of its proper divisors (29581190521).

531579479479 is a wasteful number, since it uses less digits than its factorization.

531579479479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80166177.

The product of its digits is 300056400, while the sum is 70.

The spelling of 531579479479 in words is "five hundred thirty-one billion, five hundred seventy-nine million, four hundred seventy-nine thousand, four hundred seventy-nine".