1275959568 has 80 divisors (see below), whose sum is σ = 3555772416. Its totient is φ = 391941120.

The previous prime is 1275959561. The next prime is 1275959609. The reversal of 1275959568 is 8659595721.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1275959561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473521 + ... + 476207.

Almost surely, 2^1275959568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1275959568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1777886208).

1275959568 is an abundant number, since it is smaller than the sum of its proper divisors (2279812848).

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

1275959568 is a wasteful number, since it uses less digits than its factorization.

1275959568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3472 (or 3466 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 57.

The square root of 1275959568 is about 35720.5762551502. The cubic root of 1275959568 is about 1084.6234028929.

It can be divided in two parts, 12759 and 59568, that added together give a palindrome (72327).

The spelling of 1275959568 in words is "one billion, two hundred seventy-five million, nine hundred fifty-nine thousand, five hundred sixty-eight".