531426783313 has 4 divisors (see below), whose sum is σ = 531666059188. Its totient is φ = 531187507440.

The previous prime is 531426783287. The next prime is 531426783361. The reversal of 531426783313 is 313387624135.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 138970892944 + 392455890369 = 372788^2 + 626463^2 .

It is a cyclic number.

It is not a de Polignac number, because 531426783313 - 2²⁹ = 530889912401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531426783913) 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 in 3 ways as a sum of consecutive naturals, for example, 119634606 + ... + 119639047.

It is an arithmetic number, because the mean of its divisors is an integer number (132916514797).

Almost surely, 2^531426783313 is an apocalyptic number.

It is an amenable number.

531426783313 is a deficient number, since it is larger than the sum of its proper divisors (239275875).

531426783313 is a wasteful number, since it uses less digits than its factorization.

531426783313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239275874.

The product of its digits is 1088640, while the sum is 46.

The spelling of 531426783313 in words is "five hundred thirty-one billion, four hundred twenty-six million, seven hundred eighty-three thousand, three hundred thirteen".