3846742561 has 2 divisors, whose sum is σ = 3846742562. Its totient is φ = 3846742560.

The previous prime is 3846742553. The next prime is 3846742567. The reversal of 3846742561 is 1652476483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3118552336 + 728190225 = 55844^2 + 26985^2 .

It is a cyclic number.

It is not a de Polignac number, because 3846742561 - 2³ = 3846742553 is a prime.

It is not a weakly prime, because it can be changed into another prime (3846742567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1923371280 + 1923371281.

It is an arithmetic number, because the mean of its divisors is an integer number (1923371281).

Almost surely, 2^3846742561 is an apocalyptic number.

It is an amenable number.

3846742561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3846742561 is an equidigital number, since it uses as much as digits as its factorization.

3846742561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 46.

The square root of 3846742561 is about 62022.1134838212. The cubic root of 3846742561 is about 1566.8630564478.

The spelling of 3846742561 in words is "three billion, eight hundred forty-six million, seven hundred forty-two thousand, five hundred sixty-one".