248311497793 has 2 divisors, whose sum is σ = 248311497794. Its totient is φ = 248311497792.

The previous prime is 248311497739. The next prime is 248311497803. The reversal of 248311497793 is 397794113842.

Together with previous prime (248311497739) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245904908544 + 2406589249 = 495888^2 + 49057^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248311497793 is a prime.

It is not a weakly prime, because it can be changed into another prime (248311497493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124155748896 + 124155748897.

It is an arithmetic number, because the mean of its divisors is an integer number (124155748897).

Almost surely, 2^248311497793 is an apocalyptic number.

It is an amenable number.

248311497793 is a deficient number, since it is larger than the sum of its proper divisors (1).

248311497793 is an equidigital number, since it uses as much as digits as its factorization.

248311497793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 58.

The spelling of 248311497793 in words is "two hundred forty-eight billion, three hundred eleven million, four hundred ninety-seven thousand, seven hundred ninety-three".