44447936919 has 12 divisors (see below), whose sum is σ = 62547236856. Its totient is φ = 28072380528.

The previous prime is 44447936899. The next prime is 44447936921. The reversal of 44447936919 is 91963974444.

It is not a de Polignac number, because 44447936919 - 2⁵ = 44447936887 is a prime.

It is a super-2 number, since 2×44447936919² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44447938919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20519664 + ... + 20521829.

It is an arithmetic number, because the mean of its divisors is an integer number (5212269738).

Almost surely, 2^44447936919 is an apocalyptic number.

44447936919 is a deficient number, since it is larger than the sum of its proper divisors (18099299937).

44447936919 is a wasteful number, since it uses less digits than its factorization.

44447936919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41041534 (or 41041515 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 60.

The spelling of 44447936919 in words is "forty-four billion, four hundred forty-seven million, nine hundred thirty-six thousand, nine hundred nineteen".