44228061729 has 12 divisors (see below), whose sum is σ = 63887429632. Its totient is φ = 29484243000.

The previous prime is 44228061719. The next prime is 44228061749. The reversal of 44228061729 is 92716082244.

44228061729 is a `hidden beast` number, since 4 + 4 + 2 + 2 + 8 + 0 + 617 + 29 = 666.

It is not a de Polignac number, because 44228061729 - 2⁷ = 44228061601 is a prime.

It is a super-2 number, since 2×44228061729² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44228061719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202404 + ... + 359754.

Almost surely, 2^44228061729 is an apocalyptic number.

It is an amenable number.

44228061729 is a deficient number, since it is larger than the sum of its proper divisors (19659367903).

44228061729 is a wasteful number, since it uses less digits than its factorization.

44228061729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188588 (or 188585 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 44228061729 in words is "forty-four billion, two hundred twenty-eight million, sixty-one thousand, seven hundred twenty-nine".