3543011879521 has 9 divisors (see below), whose sum is σ = 3661049677233. Its totient is φ = 3428664705060.

The previous prime is 3543011879489. The next prime is 3543011879527. The reversal of 3543011879521 is 1259781103453.

The square root of 3543011879521 is 1882289.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 3543011879521 - 2⁵ = 3543011879489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3543011879527) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 58320600 + ... + 58381318.

Almost surely, 2^{3543011879521} is an apocalyptic number.

3543011879521 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3543011879521 is the 1882289-th square number.

3543011879521 is the 941145-th centered octagonal number.

It is an amenable number.

3543011879521 is a deficient number, since it is larger than the sum of its proper divisors (118037797712).

3543011879521 is an frugal number, since it uses more digits than its factorization.

3543011879521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121500 (or 60750 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 49.

Multiplying 3543011879521 by its sum of digits (49), we get a square (173607582096529 = 13176023²).

The spelling of 3543011879521 in words is "three trillion, five hundred forty-three billion, eleven million, eight hundred seventy-nine thousand, five hundred twenty-one".