1268772603019 has 2 divisors, whose sum is σ = 1268772603020. Its totient is φ = 1268772603018.

The previous prime is 1268772603017. The next prime is 1268772603031. The reversal of 1268772603019 is 9103062778621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1268772603019 - 2¹ = 1268772603017 is a prime.

It is a super-2 number, since 2×1268772603019² (a number of 25 digits) contains 22 as substring.

Together with 1268772603017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1268772603017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634386301509 + 634386301510.

It is an arithmetic number, because the mean of its divisors is an integer number (634386301510).

Almost surely, 2^{1268772603019} is an apocalyptic number.

1268772603019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268772603019 is an equidigital number, since it uses as much as digits as its factorization.

1268772603019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 1268772603019 in words is "one trillion, two hundred sixty-eight billion, seven hundred seventy-two million, six hundred three thousand, nineteen".