3531812544 has 252 divisors, whose sum is σ = 11338249104. Its totient is φ = 1085031936.

The previous prime is 3531812533. The next prime is 3531812561. The reversal of 3531812544 is 4452181353.

3531812544 is a `hidden beast` number, since 3 + 5 + 31 + 81 + 2 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3531812499 and 3531812508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5458429 + ... + 5459075.

It is an arithmetic number, because the mean of its divisors is an integer number (44993052).

Almost surely, 2^3531812544 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 3531812544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5669124552).

3531812544 is an abundant number, since it is smaller than the sum of its proper divisors (7806436560).

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

3531812544 is an frugal number, since it uses more digits than its factorization.

3531812544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696 (or 665 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 3531812544 is about 59429.0547123206. The cubic root of 3531812544 is about 1522.8806958897.

Adding to 3531812544 its reverse (4452181353), we get a palindrome (7983993897).

The spelling of 3531812544 in words is "three billion, five hundred thirty-one million, eight hundred twelve thousand, five hundred forty-four".