268219459240 has 32 divisors (see below), whose sum is σ = 603539277480. Its totient is φ = 107279695872.

The previous prime is 268219459231. The next prime is 268219459297. The reversal of 268219459240 is 42954912862.

It can be written as a sum of positive squares in 4 ways, for example, as 250502252004 + 17717207236 = 500502^2 + 133106^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299392 + ... + 791248.

Almost surely, 2^268219459240 is an apocalyptic number.

268219459240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268219459240 is an abundant number, since it is smaller than the sum of its proper divisors (335319818240).

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

268219459240 is a wasteful number, since it uses less digits than its factorization.

268219459240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505501 (or 505497 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 268219459240 in words is "two hundred sixty-eight billion, two hundred nineteen million, four hundred fifty-nine thousand, two hundred forty".