531223276360328 has 16 divisors (see below), whose sum is σ = 999185736691980. Its totient is φ = 264773746575808.

The previous prime is 531223276360289. The next prime is 531223276360339. The reversal of 531223276360328 is 823063672322135.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 416081749278724 + 115141527081604 = 20398082^2 + 10730402^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 531223276360328.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104736447851 + ... + 104736452922.

Almost surely, 2^{531223276360328} is an apocalyptic number.

It is an amenable number.

531223276360328 is a deficient number, since it is larger than the sum of its proper divisors (467962460331652).

531223276360328 is a wasteful number, since it uses less digits than its factorization.

531223276360328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209472901096 (or 209472901092 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 53.

The spelling of 531223276360328 in words is "five hundred thirty-one trillion, two hundred twenty-three billion, two hundred seventy-six million, three hundred sixty thousand, three hundred twenty-eight".