44388981969 has 16 divisors (see below), whose sum is σ = 60247007040. Its totient is φ = 29063280960.

The previous prime is 44388981953. The next prime is 44388982049. The reversal of 44388981969 is 96918988344.

It is not a de Polignac number, because 44388981969 - 2⁴ = 44388981953 is a prime.

It is a super-2 number, since 2×44388981969² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44388981269) 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 15 ways as a sum of consecutive naturals, for example, 63442 + ... + 304635.

It is an arithmetic number, because the mean of its divisors is an integer number (3765437940).

Almost surely, 2^44388981969 is an apocalyptic number.

It is an amenable number.

44388981969 is a deficient number, since it is larger than the sum of its proper divisors (15858025071).

44388981969 is a wasteful number, since it uses less digits than its factorization.

44388981969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368800.

The product of its digits is 107495424, while the sum is 69.

The spelling of 44388981969 in words is "forty-four billion, three hundred eighty-eight million, nine hundred eighty-one thousand, nine hundred sixty-nine".