45545964109 has 2 divisors, whose sum is σ = 45545964110. Its totient is φ = 45545964108.

The previous prime is 45545964091. The next prime is 45545964131. The reversal of 45545964109 is 90146954554.

Together with previous prime (45545964091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45537426025 + 8538084 = 213395^2 + 2922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45545964109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45545964169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22772982054 + 22772982055.

It is an arithmetic number, because the mean of its divisors is an integer number (22772982055).

Almost surely, 2^45545964109 is an apocalyptic number.

It is an amenable number.

45545964109 is a deficient number, since it is larger than the sum of its proper divisors (1).

45545964109 is an equidigital number, since it uses as much as digits as its factorization.

45545964109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888000, while the sum is 52.

The spelling of 45545964109 in words is "forty-five billion, five hundred forty-five million, nine hundred sixty-four thousand, one hundred nine".