44518465987 has 4 divisors (see below), whose sum is σ = 45018673560. Its totient is φ = 44018258416.

The previous prime is 44518465973. The next prime is 44518465997. The reversal of 44518465987 is 78956481544.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44518465987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44518465967) 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, 250103653 + ... + 250103830.

It is an arithmetic number, because the mean of its divisors is an integer number (11254668390).

Almost surely, 2^44518465987 is an apocalyptic number.

44518465987 is a deficient number, since it is larger than the sum of its proper divisors (500207573).

44518465987 is an equidigital number, since it uses as much as digits as its factorization.

44518465987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500207572.

The product of its digits is 38707200, while the sum is 61.

The spelling of 44518465987 in words is "forty-four billion, five hundred eighteen million, four hundred sixty-five thousand, nine hundred eighty-seven".