1268969975 has 24 divisors (see below), whose sum is σ = 1936646880. Its totient is φ = 803214720.

The previous prime is 1268969939. The next prime is 1268970029. The reversal of 1268969975 is 5799698621.

It is not a de Polignac number, because 1268969975 - 2⁸ = 1268969719 is a prime.

It is a super-2 number, since 2×1268969975² = 3220569594903001250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 276620 + ... + 281169.

It is an arithmetic number, because the mean of its divisors is an integer number (80693620).

Almost surely, 2^1268969975 is an apocalyptic number.

1268969975 is a deficient number, since it is larger than the sum of its proper divisors (667676905).

1268969975 is a wasteful number, since it uses less digits than its factorization.

1268969975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557819 (or 557814 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 62.

The square root of 1268969975 is about 35622.6048317638. The cubic root of 1268969975 is about 1082.6392853609.

The spelling of 1268969975 in words is "one billion, two hundred sixty-eight million, nine hundred sixty-nine thousand, nine hundred seventy-five".