268301310157 has 4 divisors (see below), whose sum is σ = 275552696956. Its totient is φ = 261049923360.

The previous prime is 268301310143. The next prime is 268301310169. The reversal of 268301310157 is 751013103862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 248177334276 + 20123975881 = 498174^2 + 141859^2 .

It is a cyclic number.

It is not a de Polignac number, because 268301310157 - 2¹⁵ = 268301277389 is a prime.

It is a super-2 number, since 2×268301310157² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 7251386761 = 268301310157 / (2 + 6 + 8 + 3 + 0 + 1 + 3 + 1 + 0 + 1 + 5 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268301310757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3625693344 + ... + 3625693417.

It is an arithmetic number, because the mean of its divisors is an integer number (68888174239).

Almost surely, 2^268301310157 is an apocalyptic number.

It is an amenable number.

268301310157 is a deficient number, since it is larger than the sum of its proper divisors (7251386799).

268301310157 is an equidigital number, since it uses as much as digits as its factorization.

268301310157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7251386798.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 268301310157 in words is "two hundred sixty-eight billion, three hundred one million, three hundred ten thousand, one hundred fifty-seven".