1268188479747 has 36 divisors (see below), whose sum is σ = 2110133369136. Its totient is φ = 718972420320.

The previous prime is 1268188479743. The next prime is 1268188479751. The reversal of 1268188479747 is 7479748818621.

1268188479747 is a `hidden beast` number, since 1 + 2 + 6 + 8 + 1 + 88 + 479 + 74 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (1268188479743) and next prime (1268188479751).

It is not a de Polignac number, because 1268188479747 - 2² = 1268188479743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1268188479743) 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 35 ways as a sum of consecutive naturals, for example, 392097 + ... + 1640157.

Almost surely, 2^{1268188479747} is an apocalyptic number.

1268188479747 is a deficient number, since it is larger than the sum of its proper divisors (841944889389).

1268188479747 is a wasteful number, since it uses less digits than its factorization.

1268188479747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248328 (or 1248198 counting only the distinct ones).

The product of its digits is 303464448, while the sum is 72.

The spelling of 1268188479747 in words is "one trillion, two hundred sixty-eight billion, one hundred eighty-eight million, four hundred seventy-nine thousand, seven hundred forty-seven".