244444040628481 has 16 divisors (see below), whose sum is σ = 248623392888000. Its totient is φ = 240280799064768.

The previous prime is 244444040628371. The next prime is 244444040628493. The reversal of 244444040628481 is 184826040444442.

It is a cyclic number.

It is not a de Polignac number, because 244444040628481 - 2¹⁷ = 244444040497409 is a prime.

It is a super-2 number, since 2×244444040628481² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244444040028481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63347670 + ... + 67095568.

It is an arithmetic number, because the mean of its divisors is an integer number (15538962055500).

Almost surely, 2^{244444040628481} is an apocalyptic number.

It is an amenable number.

244444040628481 is a deficient number, since it is larger than the sum of its proper divisors (4179352259519).

244444040628481 is a wasteful number, since it uses less digits than its factorization.

244444040628481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750048.

The product of its (nonzero) digits is 25165824, while the sum is 55.

The spelling of 244444040628481 in words is "two hundred forty-four trillion, four hundred forty-four billion, forty million, six hundred twenty-eight thousand, four hundred eighty-one".