268016909421 has 8 divisors (see below), whose sum is σ = 357358345344. Its totient is φ = 178676706560.

The previous prime is 268016909387. The next prime is 268016909473. The reversal of 268016909421 is 124909610862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268016909421 - 2⁶ = 268016909357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268016909491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506701 + ... + 890381.

It is an arithmetic number, because the mean of its divisors is an integer number (44669793168).

Almost surely, 2^268016909421 is an apocalyptic number.

It is an amenable number.

268016909421 is a deficient number, since it is larger than the sum of its proper divisors (89341435923).

268016909421 is a wasteful number, since it uses less digits than its factorization.

268016909421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616531.

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 268016909421 in words is "two hundred sixty-eight billion, sixteen million, nine hundred nine thousand, four hundred twenty-one".