531213353364350 has 288 divisors, whose sum is σ = 1113468100668000. Its totient is φ = 188187606835200.

The previous prime is 531213353364319. The next prime is 531213353364361. The reversal of 531213353364350 is 53463353312135.

It is a junction number, because it is equal to n+sod(n) for n = 531213353364295 and 531213353364304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 8306796176 + ... + 8306860124.

It is an arithmetic number, because the mean of its divisors is an integer number (3866208682875).

Almost surely, 2^{531213353364350} is an apocalyptic number.

531213353364350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

531213353364350 is an abundant number, since it is smaller than the sum of its proper divisors (582254747303650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531213353364350 is a wasteful number, since it uses less digits than its factorization.

531213353364350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64528 (or 64506 counting only the distinct ones).

The product of its (nonzero) digits is 4374000, while the sum is 47.

The spelling of 531213353364350 in words is "five hundred thirty-one trillion, two hundred thirteen billion, three hundred fifty-three million, three hundred sixty-four thousand, three hundred fifty".