1267280113727 has 2 divisors, whose sum is σ = 1267280113728. Its totient is φ = 1267280113726.

The previous prime is 1267280113711. The next prime is 1267280113811. The reversal of 1267280113727 is 7273110827621.

It is a weak prime.

It is an emirp because it is prime and its reverse (7273110827621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1267280113727 - 2⁴ = 1267280113711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1267280113927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633640056863 + 633640056864.

It is an arithmetic number, because the mean of its divisors is an integer number (633640056864).

Almost surely, 2^{1267280113727} is an apocalyptic number.

1267280113727 is a deficient number, since it is larger than the sum of its proper divisors (1).

1267280113727 is an equidigital number, since it uses as much as digits as its factorization.

1267280113727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 395136, while the sum is 47.

The spelling of 1267280113727 in words is "one trillion, two hundred sixty-seven billion, two hundred eighty million, one hundred thirteen thousand, seven hundred twenty-seven".