1144613206469 has 4 divisors (see below), whose sum is σ = 1144621191180. Its totient is φ = 1144605221760.

The previous prime is 1144613206463. The next prime is 1144613206531. The reversal of 1144613206469 is 9646023164411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107281141444 + 1037332065025 = 327538^2 + 1018495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144613206469 - 2¹² = 1144613202373 is a prime.

It is a super-2 number, since 2×1144613206469² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144613206463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3773324 + ... + 4065365.

It is an arithmetic number, because the mean of its divisors is an integer number (286155297795).

Almost surely, 2^{1144613206469} is an apocalyptic number.

It is an amenable number.

1144613206469 is a deficient number, since it is larger than the sum of its proper divisors (7984711).

1144613206469 is an equidigital number, since it uses as much as digits as its factorization.

1144613206469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7984710.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 1144613206469 in words is "one trillion, one hundred forty-four billion, six hundred thirteen million, two hundred six thousand, four hundred sixty-nine".