45885638849 has 2 divisors, whose sum is σ = 45885638850. Its totient is φ = 45885638848.

The previous prime is 45885638839. The next prime is 45885638867. The reversal of 45885638849 is 94883658854.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45884638849 + 1000000 = 214207^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 45885638849 - 2³² = 41590671553 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (45885638839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22942819424 + 22942819425.

It is an arithmetic number, because the mean of its divisors is an integer number (22942819425).

Almost surely, 2^45885638849 is an apocalyptic number.

It is an amenable number.

45885638849 is a deficient number, since it is larger than the sum of its proper divisors (1).

45885638849 is an equidigital number, since it uses as much as digits as its factorization.

45885638849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 265420800, while the sum is 68.

The spelling of 45885638849 in words is "forty-five billion, eight hundred eighty-five million, six hundred thirty-eight thousand, eight hundred forty-nine".