44131494728 has 16 divisors (see below), whose sum is σ = 82785305580. Its totient is φ = 22055413248.

The previous prime is 44131494727. The next prime is 44131494739. The reversal of 44131494728 is 82749413144.

It can be written as a sum of positive squares in 2 ways, for example, as 42585275044 + 1546219684 = 206362^2 + 39322^2 .

It is not an unprimeable number, because it can be changed into a prime (44131494721) 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, 1273601 + ... + 1307792.

Almost surely, 2^44131494728 is an apocalyptic number.

It is an amenable number.

44131494728 is a deficient number, since it is larger than the sum of its proper divisors (38653810852).

44131494728 is a wasteful number, since it uses less digits than its factorization.

44131494728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583536 (or 2583532 counting only the distinct ones).

The product of its digits is 774144, while the sum is 47.

The spelling of 44131494728 in words is "forty-four billion, one hundred thirty-one million, four hundred ninety-four thousand, seven hundred twenty-eight".