4044251146609 has 2 divisors, whose sum is σ = 4044251146610. Its totient is φ = 4044251146608.

The previous prime is 4044251146603. The next prime is 4044251146669. The reversal of 4044251146609 is 9066411524404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3501483000625 + 542768145984 = 1871225^2 + 736728^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4044251146609 is a prime.

It is a super-2 number, since 2×4044251146609² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4044251146603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2022125573304 + 2022125573305.

It is an arithmetic number, because the mean of its divisors is an integer number (2022125573305).

Almost surely, 2^{4044251146609} is an apocalyptic number.

It is an amenable number.

4044251146609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4044251146609 is an equidigital number, since it uses as much as digits as its factorization.

4044251146609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 4044251146609 in words is "four trillion, forty-four billion, two hundred fifty-one million, one hundred forty-six thousand, six hundred nine".