45240849917 has 4 divisors (see below), whose sum is σ = 45241847520. Its totient is φ = 45239852316.

The previous prime is 45240849893. The next prime is 45240849937. The reversal of 45240849917 is 71994804254.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71994804254 = 2 ⋅35997402127.

It is a cyclic number.

It is not a de Polignac number, because 45240849917 - 2⁶ = 45240849853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45240849937) 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 3 ways as a sum of consecutive naturals, for example, 427367 + ... + 522612.

It is an arithmetic number, because the mean of its divisors is an integer number (11310461880).

Almost surely, 2^45240849917 is an apocalyptic number.

It is an amenable number.

45240849917 is a deficient number, since it is larger than the sum of its proper divisors (997603).

45240849917 is an equidigital number, since it uses as much as digits as its factorization.

45240849917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997602.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 45240849917 in words is "forty-five billion, two hundred forty million, eight hundred forty-nine thousand, nine hundred seventeen".