1267263670313 has 4 divisors (see below), whose sum is σ = 1286178053520. Its totient is φ = 1248349287108.

The previous prime is 1267263670259. The next prime is 1267263670331. The reversal of 1267263670313 is 3130763627621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1267263670313 - 2¹² = 1267263666217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1267263670213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9457191503 + ... + 9457191636.

It is an arithmetic number, because the mean of its divisors is an integer number (321544513380).

Almost surely, 2^{1267263670313} is an apocalyptic number.

It is an amenable number.

1267263670313 is a deficient number, since it is larger than the sum of its proper divisors (18914383207).

1267263670313 is an equidigital number, since it uses as much as digits as its factorization.

1267263670313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18914383206.

The product of its (nonzero) digits is 1143072, while the sum is 47.

The spelling of 1267263670313 in words is "one trillion, two hundred sixty-seven billion, two hundred sixty-three million, six hundred seventy thousand, three hundred thirteen".