45511432009 has 2 divisors, whose sum is σ = 45511432010.
Its totient is φ = 45511432008.
The previous prime is 45511431983. The next prime is 45511432033. The reversal of 45511432009 is 90023411554.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 23364039609 + 22147392400 = 152853^2 + 148820^2
It is a cyclic number.
It is not a de Polignac number, because 45511432009 - 213 = 45511423817 is a prime.
It is not a weakly prime, because it can be changed into another prime (45511432069) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22755716004 + 22755716005.
It is an arithmetic number, because the mean of its divisors is an integer number (22755716005).
Almost surely, 245511432009 is an apocalyptic number.
It is an amenable number.
45511432009 is a deficient number, since it is larger than the sum of its proper divisors (1).
45511432009 is an equidigital number, since it uses as much as digits as its factorization.
45511432009 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 21600, while the sum is 34.
The spelling of 45511432009 in words is "forty-five billion, five hundred eleven million, four hundred thirty-two thousand, nine".