268541716939 has 2 divisors, whose sum is σ = 268541716940. Its totient is φ = 268541716938.

The previous prime is 268541716889. The next prime is 268541716967. The reversal of 268541716939 is 939617145862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268541716939 - 2²³ = 268533328331 is a prime.

It is a super-2 number, since 2×268541716939² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (268541716439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134270858469 + 134270858470.

It is an arithmetic number, because the mean of its divisors is an integer number (134270858470).

Almost surely, 2^268541716939 is an apocalyptic number.

268541716939 is a deficient number, since it is larger than the sum of its proper divisors (1).

268541716939 is an equidigital number, since it uses as much as digits as its factorization.

268541716939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 61.

The spelling of 268541716939 in words is "two hundred sixty-eight billion, five hundred forty-one million, seven hundred sixteen thousand, nine hundred thirty-nine".