44012065637281 has 15 divisors (see below), whose sum is σ = 51344734022673. Its totient is φ = 37724349054420.

The previous prime is 44012065637257. The next prime is 44012065637303. The reversal of 44012065637281 is 18273656021044.

The square root of 44012065637281 is 6634159.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 44012065637281 - 2¹¹ = 44012065635233 is a prime.

It is a super-2 number, since 2×44012065637281² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (44012065637581) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 325006096 + ... + 325141486.

Almost surely, 2^{44012065637281} is an apocalyptic number.

44012065637281 is the 6634159-th square number.

44012065637281 is the 3317080-th centered octagonal number.

It is an amenable number.

44012065637281 is a deficient number, since it is larger than the sum of its proper divisors (7332668385392).

44012065637281 is an frugal number, since it uses more digits than its factorization.

44012065637281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270810 (or 135398 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

44012065637281 divided by its sum of digits (49) gives a square (898205421169 = 947737²).

The spelling of 44012065637281 in words is "forty-four trillion, twelve billion, sixty-five million, six hundred thirty-seven thousand, two hundred eighty-one".