1388493853247 has 2 divisors, whose sum is σ = 1388493853248. Its totient is φ = 1388493853246.

The previous prime is 1388493853231. The next prime is 1388493853249. The reversal of 1388493853247 is 7423583948831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1388493853247 - 2⁴ = 1388493853231 is a prime.

Together with 1388493853249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1388493853249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694246926623 + 694246926624.

It is an arithmetic number, because the mean of its divisors is an integer number (694246926624).

Almost surely, 2^{1388493853247} is an apocalyptic number.

1388493853247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388493853247 is an equidigital number, since it uses as much as digits as its factorization.

1388493853247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139345920, while the sum is 65.

The spelling of 1388493853247 in words is "one trillion, three hundred eighty-eight billion, four hundred ninety-three million, eight hundred fifty-three thousand, two hundred forty-seven".