1268255576 has 32 divisors (see below), whose sum is σ = 2725431840. Its totient is φ = 541989888.

The previous prime is 1268255557. The next prime is 1268255591. The reversal of 1268255576 is 6755528621.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1268255576.

It is a congruent number.

It is an unprimeable number.

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, 12311 + ... + 51846.

It is an arithmetic number, because the mean of its divisors is an integer number (85169745).

Almost surely, 2^1268255576 is an apocalyptic number.

It is an amenable number.

1268255576 is an abundant number, since it is smaller than the sum of its proper divisors (1457176264).

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

1268255576 is a wasteful number, since it uses less digits than its factorization.

1268255576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64523 (or 64519 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 47.

The square root of 1268255576 is about 35612.5760932848. The cubic root of 1268255576 is about 1082.4360807605.

The spelling of 1268255576 in words is "one billion, two hundred sixty-eight million, two hundred fifty-five thousand, five hundred seventy-six".