1144463481617 has 8 divisors (see below), whose sum is σ = 1152845608392. Its totient is φ = 1136081766400.

The previous prime is 1144463481587. The next prime is 1144463481631. The reversal of 1144463481617 is 7161843644411.

It is a happy number.

It is a Cunningham number, because it is equal to 1069796²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 624220085776 + 520243395841 = 790076^2 + 721279^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144463481617 - 2¹⁶ = 1144463416081 is a prime.

It is a super-3 number, since 3×1144463481617³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144463481677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7558817 + ... + 7708737.

It is an arithmetic number, because the mean of its divisors is an integer number (144105701049).

Almost surely, 2^{1144463481617} is an apocalyptic number.

It is an amenable number.

1144463481617 is a deficient number, since it is larger than the sum of its proper divisors (8382126775).

1144463481617 is a wasteful number, since it uses less digits than its factorization.

1144463481617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205779.

The product of its digits is 1548288, while the sum is 50.

The spelling of 1144463481617 in words is "one trillion, one hundred forty-four billion, four hundred sixty-three million, four hundred eighty-one thousand, six hundred seventeen".