45268568309 has 2 divisors, whose sum is σ = 45268568310. Its totient is φ = 45268568308.

The previous prime is 45268568263. The next prime is 45268568321. The reversal of 45268568309 is 90386586254.

45268568309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33524511409 + 11744056900 = 183097^2 + 108370^2 .

It is a cyclic number.

It is not a de Polignac number, because 45268568309 - 2²⁰ = 45267519733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45268568399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22634284154 + 22634284155.

It is an arithmetic number, because the mean of its divisors is an integer number (22634284155).

Almost surely, 2^45268568309 is an apocalyptic number.

It is an amenable number.

45268568309 is a deficient number, since it is larger than the sum of its proper divisors (1).

45268568309 is an equidigital number, since it uses as much as digits as its factorization.

45268568309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 45268568309 in words is "forty-five billion, two hundred sixty-eight million, five hundred sixty-eight thousand, three hundred nine".