1268545347 has 32 divisors (see below), whose sum is σ = 1947456000. Its totient is φ = 815139360.

The previous prime is 1268545337. The next prime is 1268545349. The reversal of 1268545347 is 7435458621.

1268545347 is a `hidden beast` number, since 1 + 2 + 68 + 54 + 534 + 7 = 666.

It is not a de Polignac number, because 1268545347 - 2⁴ = 1268545331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1268545349) 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 31 ways as a sum of consecutive naturals, for example, 655972 + ... + 657902.

It is an arithmetic number, because the mean of its divisors is an integer number (60858000).

Almost surely, 2^1268545347 is an apocalyptic number.

1268545347 is a deficient number, since it is larger than the sum of its proper divisors (678910653).

1268545347 is a wasteful number, since it uses less digits than its factorization.

1268545347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808 (or 2802 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 1268545347 is about 35616.6442411410. The cubic root of 1268545347 is about 1082.5185128051.

The spelling of 1268545347 in words is "one billion, two hundred sixty-eight million, five hundred forty-five thousand, three hundred forty-seven".