68215000267 has 2 divisors, whose sum is σ = 68215000268. Its totient is φ = 68215000266.

The previous prime is 68215000247. The next prime is 68215000277. The reversal of 68215000267 is 76200051286.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68215000267 - 2³⁵ = 33855261899 is a prime.

It is a super-2 number, since 2×68215000267² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68215000247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34107500133 + 34107500134.

It is an arithmetic number, because the mean of its divisors is an integer number (34107500134).

Almost surely, 2^68215000267 is an apocalyptic number.

68215000267 is a deficient number, since it is larger than the sum of its proper divisors (1).

68215000267 is an equidigital number, since it uses as much as digits as its factorization.

68215000267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 68215000267 in words is "sixty-eight billion, two hundred fifteen million, two hundred sixty-seven", and thus it is an aban number.