1268751712 has 12 divisors (see below), whose sum is σ = 2497854996. Its totient is φ = 634375840.

The previous prime is 1268751703. The next prime is 1268751721. The reversal of 1268751712 is 2171578621.

It is an interprime number because it is at equal distance from previous prime (1268751703) and next prime (1268751721).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19824214 + ... + 19824277.

It is an arithmetic number, because the mean of its divisors is an integer number (208154583).

Almost surely, 2^1268751712 is an apocalyptic number.

It is an amenable number.

1268751712 is a deficient number, since it is larger than the sum of its proper divisors (1229103284).

1268751712 is an equidigital number, since it uses as much as digits as its factorization.

1268751712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39648501 (or 39648493 counting only the distinct ones).

The product of its digits is 47040, while the sum is 40.

The square root of 1268751712 is about 35619.5411536982. The cubic root of 1268751712 is about 1082.5772104361.

The spelling of 1268751712 in words is "one billion, two hundred sixty-eight million, seven hundred fifty-one thousand, seven hundred twelve".