44813561899 has 16 divisors (see below), whose sum is σ = 47344176000. Its totient is φ = 42300411840.

The previous prime is 44813561893. The next prime is 44813561957. The reversal of 44813561899 is 99816531844.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44813561899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44813561893) 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, 7542672 + ... + 7548610.

It is an arithmetic number, because the mean of its divisors is an integer number (2959011000).

Almost surely, 2^44813561899 is an apocalyptic number.

44813561899 is a deficient number, since it is larger than the sum of its proper divisors (2530614101).

44813561899 is a wasteful number, since it uses less digits than its factorization.

44813561899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7338.

The product of its digits is 7464960, while the sum is 58.

The spelling of 44813561899 in words is "forty-four billion, eight hundred thirteen million, five hundred sixty-one thousand, eight hundred ninety-nine".