1267679268 has 24 divisors (see below), whose sum is σ = 3286576160. Its totient is φ = 422559720.

The previous prime is 1267679219. The next prime is 1267679269. The reversal of 1267679268 is 8629767621.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1267679269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5868778 + ... + 5868993.

Almost surely, 2^1267679268 is an apocalyptic number.

1267679268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1267679268 is an abundant number, since it is smaller than the sum of its proper divisors (2018896892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1267679268 is a wasteful number, since it uses less digits than its factorization.

1267679268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11737784 (or 11737776 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 1267679268 is about 35604.4838187552. The cubic root of 1267679268 is about 1082.2720993312.

The spelling of 1267679268 in words is "one billion, two hundred sixty-seven million, six hundred seventy-nine thousand, two hundred sixty-eight".