268738918469 has 16 divisors (see below), whose sum is σ = 322336219392. Its totient is φ = 219058908288.

The previous prime is 268738918403. The next prime is 268738918489. The reversal of 268738918469 is 964819837862.

It is a cyclic number.

It is not a de Polignac number, because 268738918469 - 2²⁴ = 268722141253 is a prime.

It is a super-2 number, since 2×268738918469² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268738918489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4796384 + ... + 4852089.

It is an arithmetic number, because the mean of its divisors is an integer number (20146013712).

Almost surely, 2^268738918469 is an apocalyptic number.

It is an amenable number.

268738918469 is a deficient number, since it is larger than the sum of its proper divisors (53597300923).

268738918469 is a wasteful number, since it uses less digits than its factorization.

268738918469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9648676.

The product of its digits is 250822656, while the sum is 71.

The spelling of 268738918469 in words is "two hundred sixty-eight billion, seven hundred thirty-eight million, nine hundred eighteen thousand, four hundred sixty-nine".