46539525209 has 2 divisors, whose sum is σ = 46539525210. Its totient is φ = 46539525208.

The previous prime is 46539525203. The next prime is 46539525251. The reversal of 46539525209 is 90252593564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40863409609 + 5676115600 = 202147^2 + 75340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46539525209 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (46539525203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23269762604 + 23269762605.

It is an arithmetic number, because the mean of its divisors is an integer number (23269762605).

Almost surely, 2^46539525209 is an apocalyptic number.

It is an amenable number.

46539525209 is a deficient number, since it is larger than the sum of its proper divisors (1).

46539525209 is an equidigital number, since it uses as much as digits as its factorization.

46539525209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916000, while the sum is 50.

The spelling of 46539525209 in words is "forty-six billion, five hundred thirty-nine million, five hundred twenty-five thousand, two hundred nine".