268908988321 has 8 divisors (see below), whose sum is σ = 270773887104. Its totient is φ = 267047121600.

The previous prime is 268908988319. The next prime is 268908988349. The reversal of 268908988321 is 123889809862.

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 268908988321 - 2¹ = 268908988319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268908988391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579880 + ... + 934921.

It is an arithmetic number, because the mean of its divisors is an integer number (33846735888).

Almost surely, 2^268908988321 is an apocalyptic number.

It is an amenable number.

268908988321 is a deficient number, since it is larger than the sum of its proper divisors (1864898783).

268908988321 is a wasteful number, since it uses less digits than its factorization.

268908988321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516031.

The product of its (nonzero) digits is 23887872, while the sum is 64.

The spelling of 268908988321 in words is "two hundred sixty-eight billion, nine hundred eight million, nine hundred eighty-eight thousand, three hundred twenty-one".