1264326667 has 8 divisors (see below), whose sum is σ = 1304226576. Its totient is φ = 1224728352.

The previous prime is 1264326653. The next prime is 1264326683. The reversal of 1264326667 is 7666234621.

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 1264326667 - 2²³ = 1255938059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1264326617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66868 + ... + 83665.

It is an arithmetic number, because the mean of its divisors is an integer number (163028322).

Almost surely, 2^1264326667 is an apocalyptic number.

1264326667 is a deficient number, since it is larger than the sum of its proper divisors (39899909).

1264326667 is a wasteful number, since it uses less digits than its factorization.

1264326667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150797.

The product of its digits is 435456, while the sum is 43.

The square root of 1264326667 is about 35557.3714860927. The cubic root of 1264326667 is about 1081.3171706430.

The spelling of 1264326667 in words is "one billion, two hundred sixty-four million, three hundred twenty-six thousand, six hundred sixty-seven".