44628451985 has 8 divisors (see below), whose sum is σ = 57673691880. Its totient is φ = 32956395264.

The previous prime is 44628451963. The next prime is 44628451993. The reversal of 44628451985 is 58915482644.

It can be written as a sum of positive squares in 4 ways, for example, as 2972866576 + 41655585409 = 54524^2 + 204097^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44628451985 - 2³⁴ = 27448582801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44628451985.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343295720 + ... + 343295849.

It is an arithmetic number, because the mean of its divisors is an integer number (7209211485).

Almost surely, 2^44628451985 is an apocalyptic number.

It is an amenable number.

44628451985 is a deficient number, since it is larger than the sum of its proper divisors (13045239895).

44628451985 is a wasteful number, since it uses less digits than its factorization.

44628451985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686591587.

The product of its digits is 11059200, while the sum is 56.

The spelling of 44628451985 in words is "forty-four billion, six hundred twenty-eight million, four hundred fifty-one thousand, nine hundred eighty-five".