45273363665 has 4 divisors (see below), whose sum is σ = 54328036404. Its totient is φ = 36218690928.

The previous prime is 45273363643. The next prime is 45273363769. The reversal of 45273363665 is 56636337254.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13552685056 + 31720678609 = 116416^2 + 178103^2 .

It is a cyclic number.

It is not a de Polignac number, because 45273363665 - 2⁸ = 45273363409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4527336362 + ... + 4527336371.

It is an arithmetic number, because the mean of its divisors is an integer number (13582009101).

Almost surely, 2^45273363665 is an apocalyptic number.

It is an amenable number.

45273363665 is a deficient number, since it is larger than the sum of its proper divisors (9054672739).

45273363665 is an equidigital number, since it uses as much as digits as its factorization.

45273363665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9054672738.

The product of its digits is 8164800, while the sum is 50.

The spelling of 45273363665 in words is "forty-five billion, two hundred seventy-three million, three hundred sixty-three thousand, six hundred sixty-five".