531684795379 has 4 divisors (see below), whose sum is σ = 531771777576. Its totient is φ = 531597813184.

The previous prime is 531684795347. The next prime is 531684795401. The reversal of 531684795379 is 973597486135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973597486135 = 5 ⋅194719497227.

It is a cyclic number.

It is not a de Polignac number, because 531684795379 - 2⁵ = 531684795347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531684705379) 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 3 ways as a sum of consecutive naturals, for example, 43481929 + ... + 43494154.

It is an arithmetic number, because the mean of its divisors is an integer number (132942944394).

Almost surely, 2^531684795379 is an apocalyptic number.

531684795379 is a deficient number, since it is larger than the sum of its proper divisors (86982197).

531684795379 is an equidigital number, since it uses as much as digits as its factorization.

531684795379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86982196.

The product of its digits is 171460800, while the sum is 67.

The spelling of 531684795379 in words is "five hundred thirty-one billion, six hundred eighty-four million, seven hundred ninety-five thousand, three hundred seventy-nine".