44222605649 has 8 divisors (see below), whose sum is σ = 44421137640. Its totient is φ = 44024198400.

The previous prime is 44222605619. The next prime is 44222605667. The reversal of 44222605649 is 94650622244.

It can be written as a sum of positive squares in 4 ways, for example, as 2685312400 + 41537293249 = 51820^2 + 203807^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 44222605649 - 2²⁸ = 43954170193 is a prime.

It is a super-2 number, since 2×44222605649² (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 (44222605619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719759 + ... + 778779.

It is an arithmetic number, because the mean of its divisors is an integer number (5552642205).

Almost surely, 2^44222605649 is an apocalyptic number.

It is an amenable number.

44222605649 is a deficient number, since it is larger than the sum of its proper divisors (198531991).

44222605649 is a wasteful number, since it uses less digits than its factorization.

44222605649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62371.

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 44222605649 in words is "forty-four billion, two hundred twenty-two million, six hundred five thousand, six hundred forty-nine".