268074947641 has 2 divisors, whose sum is σ = 268074947642. Its totient is φ = 268074947640.

The previous prime is 268074947563. The next prime is 268074947669. The reversal of 268074947641 is 146749470862.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167080650025 + 100994297616 = 408755^2 + 317796^2 .

It is a cyclic number.

It is not a de Polignac number, because 268074947641 - 2²¹ = 268072850489 is a prime.

It is not a weakly prime, because it can be changed into another prime (268074947341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134037473820 + 134037473821.

It is an arithmetic number, because the mean of its divisors is an integer number (134037473821).

Almost surely, 2^268074947641 is an apocalyptic number.

It is an amenable number.

268074947641 is a deficient number, since it is larger than the sum of its proper divisors (1).

268074947641 is an equidigital number, since it uses as much as digits as its factorization.

268074947641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16257024, while the sum is 58.

The spelling of 268074947641 in words is "two hundred sixty-eight billion, seventy-four million, nine hundred forty-seven thousand, six hundred forty-one".