3561084745 has 4 divisors (see below), whose sum is σ = 4273301700. Its totient is φ = 2848867792.

The previous prime is 3561084739. The next prime is 3561084749. The reversal of 3561084745 is 5474801653.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5474801653 = 191 ⋅28663883.

It can be written as a sum of positive squares in 2 ways, for example, as 1542289984 + 2018794761 = 39272^2 + 44931^2 .

It is a cyclic number.

It is not a de Polignac number, because 3561084745 - 2¹¹ = 3561082697 is a prime.

It is a super-2 number, since 2×3561084745² = 25362649122143430050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3561084749) 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, 356108470 + ... + 356108479.

It is an arithmetic number, because the mean of its divisors is an integer number (1068325425).

Almost surely, 2^3561084745 is an apocalyptic number.

It is an amenable number.

3561084745 is a deficient number, since it is larger than the sum of its proper divisors (712216955).

3561084745 is an equidigital number, since it uses as much as digits as its factorization.

3561084745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712216954.

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 3561084745 is about 59674.8250521105. The cubic root of 3561084745 is about 1527.0764147192.

The spelling of 3561084745 in words is "three billion, five hundred sixty-one million, eighty-four thousand, seven hundred forty-five".