531689527379 has 4 divisors (see below), whose sum is σ = 554806463376. Its totient is φ = 508572591384.

The previous prime is 531689527363. The next prime is 531689527409. The reversal of 531689527379 is 973725986135.

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 531689527379 - 2⁴ = 531689527363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531689527079) 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, 11558467964 + ... + 11558468009.

It is an arithmetic number, because the mean of its divisors is an integer number (138701615844).

Almost surely, 2^531689527379 is an apocalyptic number.

531689527379 is a deficient number, since it is larger than the sum of its proper divisors (23116935997).

531689527379 is a wasteful number, since it uses less digits than its factorization.

531689527379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23116935996.

The product of its digits is 85730400, while the sum is 65.

The spelling of 531689527379 in words is "five hundred thirty-one billion, six hundred eighty-nine million, five hundred twenty-seven thousand, three hundred seventy-nine".