531584478979 has 2 divisors, whose sum is σ = 531584478980. Its totient is φ = 531584478978.

The previous prime is 531584478959. The next prime is 531584479003. The reversal of 531584478979 is 979874485135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531584478979 - 2⁵ = 531584478947 is a prime.

It is not a weakly prime, because it can be changed into another prime (531584478959) 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 as a sum of consecutive naturals, namely, 265792239489 + 265792239490.

It is an arithmetic number, because the mean of its divisors is an integer number (265792239490).

Almost surely, 2^531584478979 is an apocalyptic number.

531584478979 is a deficient number, since it is larger than the sum of its proper divisors (1).

531584478979 is an equidigital number, since it uses as much as digits as its factorization.

531584478979 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 531584478979 in words is "five hundred thirty-one billion, five hundred eighty-four million, four hundred seventy-eight thousand, nine hundred seventy-nine".