44026005649 has 16 divisors (see below), whose sum is σ = 44949510144. Its totient is φ = 43112664400.

The previous prime is 44026005641. The next prime is 44026005689. The reversal of 44026005649 is 94650062044.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 44026005649 - 2³ = 44026005641 is a prime.

It is a super-2 number, since 2×44026005649² (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 (44026005641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11991084 + ... + 11994754.

It is an arithmetic number, because the mean of its divisors is an integer number (2809344384).

Almost surely, 2^44026005649 is an apocalyptic number.

It is an amenable number.

44026005649 is a deficient number, since it is larger than the sum of its proper divisors (923504495).

44026005649 is a wasteful number, since it uses less digits than its factorization.

44026005649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 44026005649 in words is "forty-four billion, twenty-six million, five thousand, six hundred forty-nine".