944261000261 has 2 divisors, whose sum is σ = 944261000262. Its totient is φ = 944261000260.

The previous prime is 944261000251. The next prime is 944261000273. The reversal of 944261000261 is 162000162449.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 873254739361 + 71006260900 = 934481^2 + 266470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-944261000261 is a prime.

It is a super-2 number, since 2×944261000261² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (944261000251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472130500130 + 472130500131.

It is an arithmetic number, because the mean of its divisors is an integer number (472130500131).

Almost surely, 2^944261000261 is an apocalyptic number.

It is an amenable number.

944261000261 is a deficient number, since it is larger than the sum of its proper divisors (1).

944261000261 is an equidigital number, since it uses as much as digits as its factorization.

944261000261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 944261000261 in words is "nine hundred forty-four billion, two hundred sixty-one million, two hundred sixty-one", and thus it is an aban number.