3543274561 has 4 divisors (see below), whose sum is σ = 3610128852. Its totient is φ = 3476420272.

The previous prime is 3543274543. The next prime is 3543274613. The reversal of 3543274561 is 1654723453.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2733302961 + 809971600 = 52281^2 + 28460^2 .

It is a cyclic number.

It is not a de Polignac number, because 3543274561 - 2¹³ = 3543266369 is a prime.

It is a super-2 number, since 2×3543274561² = 25109589229259485442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3543274061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33427066 + ... + 33427171.

It is an arithmetic number, because the mean of its divisors is an integer number (902532213).

Almost surely, 2^3543274561 is an apocalyptic number.

It is an amenable number.

3543274561 is a deficient number, since it is larger than the sum of its proper divisors (66854291).

3543274561 is an equidigital number, since it uses as much as digits as its factorization.

3543274561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66854290.

The product of its digits is 302400, while the sum is 40.

The square root of 3543274561 is about 59525.4110527596. The cubic root of 3543274561 is about 1524.5263509429.

The spelling of 3543274561 in words is "three billion, five hundred forty-three million, two hundred seventy-four thousand, five hundred sixty-one".