45261286009 has 9 divisors (see below), whose sum is σ = 45858494703. Its totient is φ = 44671764072.

The previous prime is 45261286003. The next prime is 45261286039. The reversal of 45261286009 is 90068216254.

The square root of 45261286009 is 212747.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 18570875625 + 26690410384 = 136275^2 + 163372^2 .

It is not a de Polignac number, because 45261286009 - 2⁹ = 45261285497 is a prime.

It is a super-2 number, since 2×45261286009² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45261286003) 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 in 8 ways as a sum of consecutive naturals, for example, 16805667 + ... + 16808359.

Almost surely, 2^45261286009 is an apocalyptic number.

45261286009 is the 212747-th square number.

45261286009 is the 106374-th centered octagonal number.

It is an amenable number.

45261286009 is a deficient number, since it is larger than the sum of its proper divisors (597208694).

45261286009 is an frugal number, since it uses more digits than its factorization.

45261286009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5544 (or 2772 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 45261286009 in words is "forty-five billion, two hundred sixty-one million, two hundred eighty-six thousand, nine".