1267745955849 has 12 divisors (see below), whose sum is σ = 1831354150912. Its totient is φ = 845087563800.

The previous prime is 1267745955803. The next prime is 1267745955851. The reversal of 1267745955849 is 9485595477621.

1267745955849 is a `hidden beast` number, since 1 + 2 + 67 + 7 + 4 + 5 + 9 + 558 + 4 + 9 = 666.

It is not a de Polignac number, because 1267745955849 - 2³³ = 1259156021257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1267745955899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6262057 + ... + 6461334.

Almost surely, 2^{1267745955849} is an apocalyptic number.

It is an amenable number.

1267745955849 is a deficient number, since it is larger than the sum of its proper divisors (563608195063).

1267745955849 is a wasteful number, since it uses less digits than its factorization.

1267745955849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12734468 (or 12734465 counting only the distinct ones).

The product of its digits is 762048000, while the sum is 72.

The spelling of 1267745955849 in words is "one trillion, two hundred sixty-seven billion, seven hundred forty-five million, nine hundred fifty-five thousand, eight hundred forty-nine".