3536509961 has 2 divisors, whose sum is σ = 3536509962. Its totient is φ = 3536509960.

The previous prime is 3536509943. The next prime is 3536510023. The reversal of 3536509961 is 1699056353.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2995482361 + 541027600 = 54731^2 + 23260^2 .

It is a cyclic number.

It is not a de Polignac number, because 3536509961 - 2²⁶ = 3469401097 is a prime.

It is not a weakly prime, because it can be changed into another prime (3536509901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1768254980 + 1768254981.

It is an arithmetic number, because the mean of its divisors is an integer number (1768254981).

Almost surely, 2^3536509961 is an apocalyptic number.

It is an amenable number.

3536509961 is a deficient number, since it is larger than the sum of its proper divisors (1).

3536509961 is an equidigital number, since it uses as much as digits as its factorization.

3536509961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 656100, while the sum is 47.

The square root of 3536509961 is about 59468.5627958167. The cubic root of 3536509961 is about 1523.5555558394. Note that the first 6 decimals are identical.

The spelling of 3536509961 in words is "three billion, five hundred thirty-six million, five hundred nine thousand, nine hundred sixty-one".