1275968964 has 24 divisors (see below), whose sum is σ = 3026070208. Its totient is φ = 418350240.

The previous prime is 1275968927. The next prime is 1275968977. The reversal of 1275968964 is 4698695721.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 870832 + ... + 872295.

Almost surely, 2^1275968964 is an apocalyptic number.

It is an amenable number.

1275968964 is an abundant number, since it is smaller than the sum of its proper divisors (1750101244).

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

1275968964 is a wasteful number, since it uses less digits than its factorization.

1275968964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743195 (or 1743193 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The square root of 1275968964 is about 35720.7077757426. The cubic root of 1275968964 is about 1084.6260652282.

The spelling of 1275968964 in words is "one billion, two hundred seventy-five million, nine hundred sixty-eight thousand, nine hundred sixty-four".