248668667537 has 2 divisors, whose sum is σ = 248668667538. Its totient is φ = 248668667536.

The previous prime is 248668667447. The next prime is 248668667539. The reversal of 248668667537 is 735766866842.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169994588416 + 78674079121 = 412304^2 + 280489^2 .

It is a cyclic number.

It is not a de Polignac number, because 248668667537 - 2⁸ = 248668667281 is a prime.

It is a super-2 number, since 2×248668667537² (a number of 24 digits) contains 22 as substring.

Together with 248668667539, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (248668667539) 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, 124334333768 + 124334333769.

It is an arithmetic number, because the mean of its divisors is an integer number (124334333769).

Almost surely, 2^248668667537 is an apocalyptic number.

It is an amenable number.

248668667537 is a deficient number, since it is larger than the sum of its proper divisors (1).

248668667537 is an equidigital number, since it uses as much as digits as its factorization.

248668667537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 487710720, while the sum is 68.

The spelling of 248668667537 in words is "two hundred forty-eight billion, six hundred sixty-eight million, six hundred sixty-seven thousand, five hundred thirty-seven".