4250243185081 has 2 divisors, whose sum is σ = 4250243185082. Its totient is φ = 4250243185080.

The previous prime is 4250243185061. The next prime is 4250243185121. The reversal of 4250243185081 is 1805813420524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3064722903225 + 1185520281856 = 1750635^2 + 1088816^2 .

It is a cyclic number.

It is not a de Polignac number, because 4250243185081 - 2⁵ = 4250243185049 is a prime.

It is a super-2 number, since 2×4250243185081² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4250243185061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2125121592540 + 2125121592541.

It is an arithmetic number, because the mean of its divisors is an integer number (2125121592541).

Almost surely, 2^{4250243185081} is an apocalyptic number.

It is an amenable number.

4250243185081 is a deficient number, since it is larger than the sum of its proper divisors (1).

4250243185081 is an equidigital number, since it uses as much as digits as its factorization.

4250243185081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 307200, while the sum is 43.

The spelling of 4250243185081 in words is "four trillion, two hundred fifty billion, two hundred forty-three million, one hundred eighty-five thousand, eighty-one".