1264779266 has 8 divisors (see below), whose sum is σ = 1908808464. Its totient is φ = 628509780.

The previous prime is 1264779151. The next prime is 1264779287. The reversal of 1264779266 is 6629774621.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1939520 + ... + 1940171.

It is an arithmetic number, because the mean of its divisors is an integer number (238601058).

Almost surely, 2^1264779266 is an apocalyptic number.

1264779266 is a deficient number, since it is larger than the sum of its proper divisors (644029198).

1264779266 is a wasteful number, since it uses less digits than its factorization.

1264779266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879856.

The product of its digits is 1524096, while the sum is 50.

The square root of 1264779266 is about 35563.7352650140. The cubic root of 1264779266 is about 1081.4461838947.

The spelling of 1264779266 in words is "one billion, two hundred sixty-four million, seven hundred seventy-nine thousand, two hundred sixty-six".