45385987169 has 2 divisors, whose sum is σ = 45385987170. Its totient is φ = 45385987168.

The previous prime is 45385987151. The next prime is 45385987187. The reversal of 45385987169 is 96178958354.

It is a balanced prime because it is at equal distance from previous prime (45385987151) and next prime (45385987187).

It can be written as a sum of positive squares in only one way, i.e., 42578259025 + 2807728144 = 206345^2 + 52988^2 .

It is a cyclic number.

It is not a de Polignac number, because 45385987169 - 2²⁰ = 45384938593 is a prime.

It is a super-2 number, since 2×45385987169² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45385980169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22692993584 + 22692993585.

It is an arithmetic number, because the mean of its divisors is an integer number (22692993585).

Almost surely, 2^45385987169 is an apocalyptic number.

It is an amenable number.

45385987169 is a deficient number, since it is larger than the sum of its proper divisors (1).

45385987169 is an equidigital number, since it uses as much as digits as its factorization.

45385987169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65318400, while the sum is 65.

The spelling of 45385987169 in words is "forty-five billion, three hundred eighty-five million, nine hundred eighty-seven thousand, one hundred sixty-nine".