44172540136 has 8 divisors (see below), whose sum is σ = 82823512770. Its totient is φ = 22086270064.

The previous prime is 44172540091. The next prime is 44172540161. The reversal of 44172540136 is 63104527144.

It can be written as a sum of positive squares in only one way, i.e., 31437417636 + 12735122500 = 177306^2 + 112850^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 44172540095 and 44172540104.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2760783751 + ... + 2760783766.

Almost surely, 2^44172540136 is an apocalyptic number.

It is an amenable number.

44172540136 is a deficient number, since it is larger than the sum of its proper divisors (38650972634).

44172540136 is a wasteful number, since it uses less digits than its factorization.

44172540136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5521567523 (or 5521567519 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 44172540136 in words is "forty-four billion, one hundred seventy-two million, five hundred forty thousand, one hundred thirty-six".