1266878467 has 8 divisors (see below), whose sum is σ = 1304027136. Its totient is φ = 1230154632.

The previous prime is 1266878429. The next prime is 1266878507. The reversal of 1266878467 is 7648786621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1266878467 - 2⁷ = 1266878339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1266878167) 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, 100153 + ... + 112090.

It is an arithmetic number, because the mean of its divisors is an integer number (163003392).

Almost surely, 2^1266878467 is an apocalyptic number.

1266878467 is a deficient number, since it is larger than the sum of its proper divisors (37148669).

1266878467 is a wasteful number, since it uses less digits than its factorization.

1266878467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212417.

The product of its digits is 5419008, while the sum is 55.

The square root of 1266878467 is about 35593.2362535356. The cubic root of 1266878467 is about 1082.0441586204.

The spelling of 1266878467 in words is "one billion, two hundred sixty-six million, eight hundred seventy-eight thousand, four hundred sixty-seven".