724414315531 has 2 divisors, whose sum is σ = 724414315532. Its totient is φ = 724414315530.

The previous prime is 724414315529. The next prime is 724414315567. The reversal of 724414315531 is 135513414427.

It is a weak prime.

It is an emirp because it is prime and its reverse (135513414427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 724414315531 - 2¹ = 724414315529 is a prime.

It is a super-2 number, since 2×724414315531² (a number of 25 digits) contains 22 as substring.

Together with 724414315529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (724414310531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362207157765 + 362207157766.

It is an arithmetic number, because the mean of its divisors is an integer number (362207157766).

Almost surely, 2^724414315531 is an apocalyptic number.

724414315531 is a deficient number, since it is larger than the sum of its proper divisors (1).

724414315531 is an equidigital number, since it uses as much as digits as its factorization.

724414315531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 40.

Adding to 724414315531 its reverse (135513414427), we get a palindrome (859927729958).

The spelling of 724414315531 in words is "seven hundred twenty-four billion, four hundred fourteen million, three hundred fifteen thousand, five hundred thirty-one".