68947537319 has 2 divisors, whose sum is σ = 68947537320. Its totient is φ = 68947537318.

The previous prime is 68947537301. The next prime is 68947537369. The reversal of 68947537319 is 91373574986.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68947537319 - 2⁸ = 68947537063 is a prime.

It is a super-2 number, since 2×68947537319² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68947537369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34473768659 + 34473768660.

It is an arithmetic number, because the mean of its divisors is an integer number (34473768660).

Almost surely, 2^68947537319 is an apocalyptic number.

68947537319 is a deficient number, since it is larger than the sum of its proper divisors (1).

68947537319 is an equidigital number, since it uses as much as digits as its factorization.

68947537319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34292160, while the sum is 62.

The spelling of 68947537319 in words is "sixty-eight billion, nine hundred forty-seven million, five hundred thirty-seven thousand, three hundred nineteen".