68996499841 has 2 divisors, whose sum is σ = 68996499842. Its totient is φ = 68996499840.

The previous prime is 68996499827. The next prime is 68996499877. The reversal of 68996499841 is 14899469986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45158375025 + 23838124816 = 212505^2 + 154396^2 .

It is a cyclic number.

It is not a de Polignac number, because 68996499841 - 2⁹ = 68996499329 is a prime.

It is a super-2 number, since 2×68996499841² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68996499881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34498249920 + 34498249921.

It is an arithmetic number, because the mean of its divisors is an integer number (34498249921).

Almost surely, 2^68996499841 is an apocalyptic number.

It is an amenable number.

68996499841 is a deficient number, since it is larger than the sum of its proper divisors (1).

68996499841 is an equidigital number, since it uses as much as digits as its factorization.

68996499841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241864704, while the sum is 73.

The spelling of 68996499841 in words is "sixty-eight billion, nine hundred ninety-six million, four hundred ninety-nine thousand, eight hundred forty-one".