44909394985 has 36 divisors (see below), whose sum is σ = 67883153868. Its totient is φ = 28426140288.

The previous prime is 44909394953. The next prime is 44909395019. The reversal of 44909394985 is 58949390944.

It can be written as a sum of positive squares in 6 ways, for example, as 16560601344 + 28348793641 = 128688^2 + 168371^2 .

It is not a de Polignac number, because 44909394985 - 2⁵ = 44909394953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 500914 + ... + 583723.

It is an arithmetic number, because the mean of its divisors is an integer number (1885643163).

Almost surely, 2^44909394985 is an apocalyptic number.

It is an amenable number.

44909394985 is a deficient number, since it is larger than the sum of its proper divisors (22973758883).

44909394985 is a wasteful number, since it uses less digits than its factorization.

44909394985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084682 (or 1084662 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 64.

The spelling of 44909394985 in words is "forty-four billion, nine hundred nine million, three hundred ninety-four thousand, nine hundred eighty-five".