3147750652661 has 2 divisors, whose sum is σ = 3147750652662. Its totient is φ = 3147750652660.

The previous prime is 3147750652609. The next prime is 3147750652679. The reversal of 3147750652661 is 1662560577413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2946351652036 + 201399000625 = 1716494^2 + 448775^2 .

It is a cyclic number.

It is not a de Polignac number, because 3147750652661 - 2³⁴ = 3130570783477 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3147750652691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1573875326330 + 1573875326331.

It is an arithmetic number, because the mean of its divisors is an integer number (1573875326331).

Almost surely, 2^{3147750652661} is an apocalyptic number.

It is an amenable number.

3147750652661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3147750652661 is an equidigital number, since it uses as much as digits as its factorization.

3147750652661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6350400, while the sum is 53.

The spelling of 3147750652661 in words is "three trillion, one hundred forty-seven billion, seven hundred fifty million, six hundred fifty-two thousand, six hundred sixty-one".