1248791667853 has 2 divisors, whose sum is σ = 1248791667854. Its totient is φ = 1248791667852.

The previous prime is 1248791667833. The next prime is 1248791667881. The reversal of 1248791667853 is 3587661978421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 803366238249 + 445425429604 = 896307^2 + 667402^2 .

It is a cyclic number.

It is not a de Polignac number, because 1248791667853 - 2²⁹ = 1248254796941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1248791667833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624395833926 + 624395833927.

It is an arithmetic number, because the mean of its divisors is an integer number (624395833927).

Almost surely, 2^{1248791667853} is an apocalyptic number.

It is an amenable number.

1248791667853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248791667853 is an equidigital number, since it uses as much as digits as its factorization.

1248791667853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 121927680, while the sum is 67.

The spelling of 1248791667853 in words is "one trillion, two hundred forty-eight billion, seven hundred ninety-one million, six hundred sixty-seven thousand, eight hundred fifty-three".