44349401681 has 8 divisors (see below), whose sum is σ = 48125482944. Its totient is φ = 40625404560.

The previous prime is 44349401671. The next prime is 44349401809. The reversal of 44349401681 is 18610494344.

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

It is not a de Polignac number, because 44349401681 - 2⁶ = 44349401617 is a prime.

It is a super-2 number, since 2×44349401681² (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 (44349401641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13019261 + ... + 13022666.

It is an arithmetic number, because the mean of its divisors is an integer number (6015685368).

Almost surely, 2^44349401681 is an apocalyptic number.

It is an amenable number.

44349401681 is a deficient number, since it is larger than the sum of its proper divisors (3776081263).

44349401681 is a wasteful number, since it uses less digits than its factorization.

44349401681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26042071.

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 44349401681 in words is "forty-four billion, three hundred forty-nine million, four hundred one thousand, six hundred eighty-one".