268454461681 has 8 divisors (see below), whose sum is σ = 306837685440. Its totient is φ = 230079384528.

The previous prime is 268454461663. The next prime is 268454461699. The reversal of 268454461681 is 186164454862.

It is an interprime number because it is at equal distance from previous prime (268454461663) and next prime (268454461699).

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

It is not a de Polignac number, because 268454461681 - 2¹⁷ = 268454330609 is a prime.

It is a super-2 number, since 2×268454461681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268454461651) 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, 1965871 + ... + 2097988.

It is an arithmetic number, because the mean of its divisors is an integer number (38354710680).

Almost surely, 2^268454461681 is an apocalyptic number.

It is an amenable number.

268454461681 is a deficient number, since it is larger than the sum of its proper divisors (38383223759).

268454461681 is an equidigital number, since it uses as much as digits as its factorization.

268454461681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073303.

The product of its digits is 8847360, while the sum is 55.

The spelling of 268454461681 in words is "two hundred sixty-eight billion, four hundred fifty-four million, four hundred sixty-one thousand, six hundred eighty-one".