3530005926561 has 15 divisors (see below), whose sum is σ = 5273243989761. Its totient is φ = 2353326011388.

The previous prime is 3530005926541. The next prime is 3530005926611. The reversal of 3530005926561 is 1656295000353.

The square root of 3530005926561 is 1878831.

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

3530005926561 is a `hidden beast` number, since 3 + 5 + 3 + 0 + 0 + 0 + 592 + 6 + 56 + 1 = 666.

It is not a de Polignac number, because 3530005926561 - 2²⁷ = 3529871708833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3530005926541) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 16805100 + ... + 17013858.

Almost surely, 2^{3530005926561} is an apocalyptic number.

3530005926561 is the 1878831-st square number.

3530005926561 is the 939416-th centered octagonal number.

It is an amenable number.

3530005926561 is a deficient number, since it is larger than the sum of its proper divisors (1743238063200).

3530005926561 is an frugal number, since it uses more digits than its factorization.

3530005926561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417530 (or 208762 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 45.

The spelling of 3530005926561 in words is "three trillion, five hundred thirty billion, five million, nine hundred twenty-six thousand, five hundred sixty-one".