1268607969 has 12 divisors (see below), whose sum is σ = 1832822992. Its totient is φ = 845559000.

The previous prime is 1268607919. The next prime is 1268607997. The reversal of 1268607969 is 9697068621.

1268607969 is a `hidden beast` number, since 1 + 26 + 8 + 607 + 9 + 6 + 9 = 666.

It is not a de Polignac number, because 1268607969 - 2¹² = 1268603873 is a prime.

It is a super-2 number, since 2×1268607969² = 3218732358020609922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1268607919) 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, 40614 + ... + 64704.

Almost surely, 2^1268607969 is an apocalyptic number.

It is an amenable number.

1268607969 is a deficient number, since it is larger than the sum of its proper divisors (564215023).

1268607969 is a wasteful number, since it uses less digits than its factorization.

1268607969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29948 (or 29945 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 1268607969 is about 35617.5233417485. The cubic root of 1268607969 is about 1082.5363254277.

The spelling of 1268607969 in words is "one billion, two hundred sixty-eight million, six hundred seven thousand, nine hundred sixty-nine".