3524543443521 has 96 divisors (see below), whose sum is σ = 5647965014016. Its totient is φ = 2108042496000.

The previous prime is 3524543443513. The next prime is 3524543443523. The reversal of 3524543443521 is 1253443454253.

3524543443521 is a `hidden beast` number, since 3 + 5 + 2 + 4 + 54 + 34 + 43 + 521 = 666.

It is not a de Polignac number, because 3524543443521 - 2³ = 3524543443513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3524543443523) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 416559231 + ... + 416567691.

It is an arithmetic number, because the mean of its divisors is an integer number (58832968896).

Almost surely, 2^{3524543443521} is an apocalyptic number.

3524543443521 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3524543443521 is a deficient number, since it is larger than the sum of its proper divisors (2123421570495).

3524543443521 is a wasteful number, since it uses less digits than its factorization.

3524543443521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9823 (or 9820 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 45.

Adding to 3524543443521 its reverse (1253443454253), we get a palindrome (4777986897774).

It can be divided in two parts, 3524543 and 443521, that added together give a square (3968064 = 1992²).

The spelling of 3524543443521 in words is "three trillion, five hundred twenty-four billion, five hundred forty-three million, four hundred forty-three thousand, five hundred twenty-one".