44449871407 has 4 divisors (see below), whose sum is σ = 45288548280. Its totient is φ = 43611194536.

The previous prime is 44449871387. The next prime is 44449871443. The reversal of 44449871407 is 70417894444.

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-44449871407 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 (44449871447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419338357 + ... + 419338462.

It is an arithmetic number, because the mean of its divisors is an integer number (11322137070).

Almost surely, 2^44449871407 is an apocalyptic number.

44449871407 is a deficient number, since it is larger than the sum of its proper divisors (838676873).

44449871407 is an equidigital number, since it uses as much as digits as its factorization.

44449871407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838676872.

The product of its (nonzero) digits is 3612672, while the sum is 52.

The spelling of 44449871407 in words is "forty-four billion, four hundred forty-nine million, eight hundred seventy-one thousand, four hundred seven".