1268424878 has 12 divisors (see below), whose sum is σ = 2213272152. Its totient is φ = 543610620.

The previous prime is 1268424877. The next prime is 1268424889. The reversal of 1268424878 is 8784248621.

It is a super-2 number, since 2×1268424878² = 3217803342258629768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268424877) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6471458 + ... + 6471653.

It is an arithmetic number, because the mean of its divisors is an integer number (184439346).

Almost surely, 2^1268424878 is an apocalyptic number.

1268424878 is a deficient number, since it is larger than the sum of its proper divisors (944847274).

1268424878 is a wasteful number, since it uses less digits than its factorization.

1268424878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12943127 (or 12943120 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 50.

The square root of 1268424878 is about 35614.9530113406. The cubic root of 1268424878 is about 1082.4842441441.

The spelling of 1268424878 in words is "one billion, two hundred sixty-eight million, four hundred twenty-four thousand, eight hundred seventy-eight".