248788451869 has 2 divisors, whose sum is σ = 248788451870. Its totient is φ = 248788451868.

The previous prime is 248788451867. The next prime is 248788451911. The reversal of 248788451869 is 968154887842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192269095225 + 56519356644 = 438485^2 + 237738^2 .

It is a cyclic number.

It is not a de Polignac number, because 248788451869 - 2¹ = 248788451867 is a prime.

It is a super-2 number, since 2×248788451869² (a number of 24 digits) contains 22 as substring.

Together with 248788451867, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 248788451798 and 248788451807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248788451867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124394225934 + 124394225935.

It is an arithmetic number, because the mean of its divisors is an integer number (124394225935).

Almost surely, 2^248788451869 is an apocalyptic number.

It is an amenable number.

248788451869 is a deficient number, since it is larger than the sum of its proper divisors (1).

248788451869 is an equidigital number, since it uses as much as digits as its factorization.

248788451869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 247726080, while the sum is 70.

The spelling of 248788451869 in words is "two hundred forty-eight billion, seven hundred eighty-eight million, four hundred fifty-one thousand, eight hundred sixty-nine".