248851129117 has 2 divisors, whose sum is σ = 248851129118. Its totient is φ = 248851129116.

The previous prime is 248851129091. The next prime is 248851129129. The reversal of 248851129117 is 711921158842.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135137847321 + 113713281796 = 367611^2 + 337214^2 .

It is a cyclic number.

It is not a de Polignac number, because 248851129117 - 2¹⁹ = 248850604829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248851129157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124425564558 + 124425564559.

It is an arithmetic number, because the mean of its divisors is an integer number (124425564559).

Almost surely, 2^248851129117 is an apocalyptic number.

It is an amenable number.

248851129117 is a deficient number, since it is larger than the sum of its proper divisors (1).

248851129117 is an equidigital number, since it uses as much as digits as its factorization.

248851129117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 49.

The spelling of 248851129117 in words is "two hundred forty-eight billion, eight hundred fifty-one million, one hundred twenty-nine thousand, one hundred seventeen".