248109822691 has 2 divisors, whose sum is σ = 248109822692. Its totient is φ = 248109822690.

The previous prime is 248109822673. The next prime is 248109822703. The reversal of 248109822691 is 196228901842.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 248109822691 - 2¹³ = 248109814499 is a prime.

It is not a weakly prime, because it can be changed into another prime (248109822791) 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, 124054911345 + 124054911346.

It is an arithmetic number, because the mean of its divisors is an integer number (124054911346).

Almost surely, 2^248109822691 is an apocalyptic number.

248109822691 is a deficient number, since it is larger than the sum of its proper divisors (1).

248109822691 is an equidigital number, since it uses as much as digits as its factorization.

248109822691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 52.

The spelling of 248109822691 in words is "two hundred forty-eight billion, one hundred nine million, eight hundred twenty-two thousand, six hundred ninety-one".