268293936065 has 8 divisors (see below), whose sum is σ = 322040399208. Its totient is φ = 214576698240.

The previous prime is 268293936059. The next prime is 268293936077. The reversal of 268293936065 is 560639392862.

It can be written as a sum of positive squares in 4 ways, for example, as 38626792369 + 229667143696 = 196537^2 + 479236^2 .

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

It is not a de Polignac number, because 268293936065 - 2¹⁴ = 268293919681 is a prime.

It is a super-2 number, since 2×268293936065² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 268293935995 and 268293936013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7286126 + ... + 7322855.

It is an arithmetic number, because the mean of its divisors is an integer number (40255049901).

Almost surely, 2^268293936065 is an apocalyptic number.

It is an amenable number.

268293936065 is a deficient number, since it is larger than the sum of its proper divisors (53746463143).

268293936065 is a wasteful number, since it uses less digits than its factorization.

268293936065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14612659.

The product of its (nonzero) digits is 25194240, while the sum is 59.

The spelling of 268293936065 in words is "two hundred sixty-eight billion, two hundred ninety-three million, nine hundred thirty-six thousand, sixty-five".