3546780961 has 4 divisors (see below), whose sum is σ = 3553589124. Its totient is φ = 3539972800.

The previous prime is 3546780953. The next prime is 3546780967. The reversal of 3546780961 is 1690876453.

3546780961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 318836736 + 3227944225 = 17856^2 + 56815^2 .

It is a cyclic number.

It is not a de Polignac number, because 3546780961 - 2³ = 3546780953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3546780967) 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, 3403300 + ... + 3404341.

It is an arithmetic number, because the mean of its divisors is an integer number (888397281).

Almost surely, 2^3546780961 is an apocalyptic number.

It is an amenable number.

3546780961 is a deficient number, since it is larger than the sum of its proper divisors (6808163).

3546780961 is an equidigital number, since it uses as much as digits as its factorization.

3546780961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6808162.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 3546780961 is about 59554.8567372973. The cubic root of 3546780961 is about 1525.0290720607.

The spelling of 3546780961 in words is "three billion, five hundred forty-six million, seven hundred eighty thousand, nine hundred sixty-one".