44136012852 has 18 divisors (see below), whose sum is σ = 111566032578. Its totient is φ = 14712004272.

The previous prime is 44136012847. The next prime is 44136012859. The reversal of 44136012852 is 25821063144.

It is a happy number.

44136012852 is a `hidden beast` number, since 4 + 41 + 3 + 601 + 2 + 8 + 5 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 35102270736 + 9033742116 = 187356^2 + 95046^2 .

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

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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: 1226000357 = 44136012852 / (4 + 4 + 1 + 3 + 6 + 0 + 1 + 2 + 8 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44136012859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 613000143 + ... + 613000214.

It is an arithmetic number, because the mean of its divisors is an integer number (6198112921).

Almost surely, 2^44136012852 is an apocalyptic number.

It is an amenable number.

44136012852 is an abundant number, since it is smaller than the sum of its proper divisors (67430019726).

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

44136012852 is a wasteful number, since it uses less digits than its factorization.

44136012852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226000367 (or 1226000362 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

Adding to 44136012852 its reverse (25821063144), we get a palindrome (69957075996).

The spelling of 44136012852 in words is "forty-four billion, one hundred thirty-six million, twelve thousand, eight hundred fifty-two".