1268806580 has 24 divisors (see below), whose sum is σ = 2670581760. Its totient is φ = 506363040.

The previous prime is 1268806573. The next prime is 1268806603. The reversal of 1268806580 is 856088621.

It is a congruent number.

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, 63476 + ... + 81035.

It is an arithmetic number, because the mean of its divisors is an integer number (111274240).

Almost surely, 2^1268806580 is an apocalyptic number.

1268806580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1268806580 is an abundant number, since it is smaller than the sum of its proper divisors (1401775180).

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

1268806580 is a wasteful number, since it uses less digits than its factorization.

1268806580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144959 (or 144957 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 1268806580 is about 35620.3113405821. The cubic root of 1268806580 is about 1082.5928157983.

The spelling of 1268806580 in words is "one billion, two hundred sixty-eight million, eight hundred six thousand, five hundred eighty".