248131049077 has 2 divisors, whose sum is σ = 248131049078. Its totient is φ = 248131049076.

The previous prime is 248131049057. The next prime is 248131049093. The reversal of 248131049077 is 770940131842.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193988274481 + 54142774596 = 440441^2 + 232686^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248131049077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248131049027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124065524538 + 124065524539.

It is an arithmetic number, because the mean of its divisors is an integer number (124065524539).

Almost surely, 2^248131049077 is an apocalyptic number.

It is an amenable number.

248131049077 is a deficient number, since it is larger than the sum of its proper divisors (1).

248131049077 is an equidigital number, since it uses as much as digits as its factorization.

248131049077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 248131049077 in words is "two hundred forty-eight billion, one hundred thirty-one million, forty-nine thousand, seventy-seven".