531365632512 has 320 divisors, whose sum is σ = 1687940964864. Its totient is φ = 146411274240.

The previous prime is 531365632471. The next prime is 531365632517. The reversal of 531365632512 is 215236563135.

It is not an unprimeable number, because it can be changed into a prime (531365632517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14698363 + ... + 14734469.

Almost surely, 2^531365632512 is an apocalyptic number.

531365632512 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531365632512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (843970482432).

531365632512 is an abundant number, since it is smaller than the sum of its proper divisors (1156575332352).

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

531365632512 is a wasteful number, since it uses less digits than its factorization.

531365632512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36219 (or 36203 counting only the distinct ones).

The product of its digits is 486000, while the sum is 42.

The spelling of 531365632512 in words is "five hundred thirty-one billion, three hundred sixty-five million, six hundred thirty-two thousand, five hundred twelve".