268847684731 has 2 divisors, whose sum is σ = 268847684732. Its totient is φ = 268847684730.

The previous prime is 268847684701. The next prime is 268847684741. The reversal of 268847684731 is 137486748862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268847684731 - 2⁹ = 268847684219 is a prime.

It is a super-2 number, since 2×268847684731² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (268847684701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134423842365 + 134423842366.

It is an arithmetic number, because the mean of its divisors is an integer number (134423842366).

Almost surely, 2^268847684731 is an apocalyptic number.

268847684731 is a deficient number, since it is larger than the sum of its proper divisors (1).

268847684731 is an equidigital number, since it uses as much as digits as its factorization.

268847684731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86704128, while the sum is 64.

The spelling of 268847684731 in words is "two hundred sixty-eight billion, eight hundred forty-seven million, six hundred eighty-four thousand, seven hundred thirty-one".