8041551444 has 18 divisors (see below), whose sum is σ = 20327255130. Its totient is φ = 2680517136.

The previous prime is 8041551443. The next prime is 8041551449. The reversal of 8041551444 is 4441551408.

It can be written as a sum of positive squares in only one way, i.e., 4670355600 + 3371195844 = 68340^2 + 58062^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 223376429 = 8041551444 / (8 + 0 + 4 + 1 + 5 + 5 + 1 + 4 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 8041551399 and 8041551408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8041551443) 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 5 ways as a sum of consecutive naturals, for example, 111688179 + ... + 111688250.

Almost surely, 2^8041551444 is an apocalyptic number.

It is an amenable number.

8041551444 is an abundant number, since it is smaller than the sum of its proper divisors (12285703686).

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

8041551444 is a wasteful number, since it uses less digits than its factorization.

8041551444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223376439 (or 223376434 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 8041551444 is about 89674.6979030317. The cubic root of 8041551444 is about 2003.4566427022.

Subtracting from 8041551444 its sum of digits (36), we obtain a palindrome (8041551408).

The spelling of 8041551444 in words is "eight billion, forty-one million, five hundred fifty-one thousand, four hundred forty-four".