268012757 has 2 divisors, whose sum is σ = 268012758. Its totient is φ = 268012756.

The previous prime is 268012741. The next prime is 268012807. The reversal of 268012757 is 757210862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162970756 + 105042001 = 12766^2 + 10249^2 .

It is a cyclic number.

It is not a de Polignac number, because 268012757 - 2⁴ = 268012741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 268012757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268012057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134006378 + 134006379.

It is an arithmetic number, because the mean of its divisors is an integer number (134006379).

Almost surely, 2^268012757 is an apocalyptic number.

It is an amenable number.

268012757 is a deficient number, since it is larger than the sum of its proper divisors (1).

268012757 is an equidigital number, since it uses as much as digits as its factorization.

268012757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 268012757 is about 16371.0951680088. The cubic root of 268012757 is about 644.7408024498.

The spelling of 268012757 in words is "two hundred sixty-eight million, twelve thousand, seven hundred fifty-seven".