1256948568 has 48 divisors (see below), whose sum is σ = 3514056000. Its totient is φ = 405466560.

The previous prime is 1256948509. The next prime is 1256948569. The reversal of 1256948568 is 8658496521.

1256948568 is a `hidden beast` number, since 12 + 5 + 69 + 4 + 8 + 568 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256948569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 279343 + ... + 283806.

It is an arithmetic number, because the mean of its divisors is an integer number (73209500).

Almost surely, 2^1256948568 is an apocalyptic number.

1256948568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1256948568 is an abundant number, since it is smaller than the sum of its proper divisors (2257107432).

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

1256948568 is a wasteful number, since it uses less digits than its factorization.

1256948568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563192 (or 563185 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

The square root of 1256948568 is about 35453.4704648219. The cubic root of 1256948568 is about 1079.2096893058.

The spelling of 1256948568 in words is "one billion, two hundred fifty-six million, nine hundred forty-eight thousand, five hundred sixty-eight".