531336145426 has 8 divisors (see below), whose sum is σ = 843886819260. Its totient is φ = 250040539008.

The previous prime is 531336145399. The next prime is 531336145441. The reversal of 531336145426 is 624541633135.

It can be written as a sum of positive squares in 2 ways, for example, as 411138722401 + 120197423025 = 641201^2 + 346695^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 7813766811 + ... + 7813766878.

Almost surely, 2^531336145426 is an apocalyptic number.

531336145426 is a deficient number, since it is larger than the sum of its proper divisors (312550673834).

531336145426 is a wasteful number, since it uses less digits than its factorization.

531336145426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15627533708.

The product of its digits is 777600, while the sum is 43.

The spelling of 531336145426 in words is "five hundred thirty-one billion, three hundred thirty-six million, one hundred forty-five thousand, four hundred twenty-six".