249223648067 has 2 divisors, whose sum is σ = 249223648068. Its totient is φ = 249223648066.

The previous prime is 249223647977. The next prime is 249223648123. The reversal of 249223648067 is 760846322942.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 249223648067 - 2²⁴ = 249206870851 is a prime.

It is a super-2 number, since 2×249223648067² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (249223648867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124611824033 + 124611824034.

It is an arithmetic number, because the mean of its divisors is an integer number (124611824034).

Almost surely, 2^249223648067 is an apocalyptic number.

249223648067 is a deficient number, since it is larger than the sum of its proper divisors (1).

249223648067 is an equidigital number, since it uses as much as digits as its factorization.

249223648067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6967296, while the sum is 53.

The spelling of 249223648067 in words is "two hundred forty-nine billion, two hundred twenty-three million, six hundred forty-eight thousand, sixty-seven".