531642823488 has 280 divisors, whose sum is σ = 1907041257792. Its totient is φ = 142962610176.

The previous prime is 531642823477. The next prime is 531642823511. The reversal of 531642823488 is 884328246135.

531642823488 is a `hidden beast` number, since 5 + 3 + 16 + 4 + 282 + 348 + 8 = 666.

It is a super-2 number, since 2×531642823488² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 185995 + ... + 1047797.

Almost surely, 2^531642823488 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 531642823488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (953520628896).

531642823488 is an abundant number, since it is smaller than the sum of its proper divisors (1375398434304).

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

531642823488 is a wasteful number, since it uses less digits than its factorization.

531642823488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861851 (or 861832 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 54.

The spelling of 531642823488 in words is "five hundred thirty-one billion, six hundred forty-two million, eight hundred twenty-three thousand, four hundred eighty-eight".