44118718686 has 64 divisors (see below), whose sum is σ = 114334272000. Its totient is φ = 12605342904.

The previous prime is 44118718661. The next prime is 44118718757. The reversal of 44118718686 is 68681781144.

44118718686 is a `hidden beast` number, since 4 + 411 + 8 + 71 + 86 + 86 = 666.

It is a super-2 number, since 2×44118718686² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1172460 + ... + 1209503.

It is an arithmetic number, because the mean of its divisors is an integer number (1786473000).

Almost surely, 2^44118718686 is an apocalyptic number.

44118718686 is an abundant number, since it is smaller than the sum of its proper divisors (70215553314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44118718686 is a wasteful number, since it uses less digits than its factorization.

44118718686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381995 (or 2381975 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 54.

The spelling of 44118718686 in words is "forty-four billion, one hundred eighteen million, seven hundred eighteen thousand, six hundred eighty-six".