268274298497 has 4 divisors (see below), whose sum is σ = 268275348996. Its totient is φ = 268273248000.

The previous prime is 268274298463. The next prime is 268274298511. The reversal of 268274298497 is 794892472862.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 129535927921 + 138738370576 = 359911^2 + 372476^2 .

It is a cyclic number.

It is not a de Polignac number, because 268274298497 - 2¹⁸ = 268274036353 is a prime.

It is a super-3 number, since 3×268274298497³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268274298997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131753 + ... + 744249.

It is an arithmetic number, because the mean of its divisors is an integer number (67068837249).

Almost surely, 2^268274298497 is an apocalyptic number.

It is an amenable number.

268274298497 is a deficient number, since it is larger than the sum of its proper divisors (1050499).

268274298497 is an equidigital number, since it uses as much as digits as its factorization.

268274298497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050498.

The product of its digits is 195084288, while the sum is 68.

The spelling of 268274298497 in words is "two hundred sixty-eight billion, two hundred seventy-four million, two hundred ninety-eight thousand, four hundred ninety-seven".