44161686442 has 8 divisors (see below), whose sum is σ = 66258869796. Its totient is φ = 22075396512.

The previous prime is 44161686427. The next prime is 44161686463. The reversal of 44161686442 is 24468616144.

It can be written as a sum of positive squares in 2 ways, for example, as 43043385961 + 1118300481 = 207469^2 + 33441^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 44161686392 and 44161686401.

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 3 ways as a sum of consecutive naturals, for example, 2713213 + ... + 2729440.

Almost surely, 2^44161686442 is an apocalyptic number.

44161686442 is a deficient number, since it is larger than the sum of its proper divisors (22097183354).

44161686442 is a wasteful number, since it uses less digits than its factorization.

44161686442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5446712.

The product of its digits is 884736, while the sum is 46.

The spelling of 44161686442 in words is "forty-four billion, one hundred sixty-one million, six hundred eighty-six thousand, four hundred forty-two".