532581969920 has 832 divisors, whose sum is σ = 1742193460224. Its totient is φ = 150900572160.

The previous prime is 532581969919. The next prime is 532581969947. The reversal of 532581969920 is 29969185235.

It is a tau number, because it is divible by the number of its divisors (832).

It is a self number, because there is not a number n which added to its sum of digits gives 532581969920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1701539684 + ... + 1701539996.

Almost surely, 2^532581969920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 532581969920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (871096730112).

532581969920 is an abundant number, since it is smaller than the sum of its proper divisors (1209611490304).

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

532581969920 is a wasteful number, since it uses less digits than its factorization.

532581969920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 59.

The spelling of 532581969920 in words is "five hundred thirty-two billion, five hundred eighty-one million, nine hundred sixty-nine thousand, nine hundred twenty".