67798722373 has 2 divisors, whose sum is σ = 67798722374. Its totient is φ = 67798722372.

The previous prime is 67798722323. The next prime is 67798722419. The reversal of 67798722373 is 37322789776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64240957764 + 3557764609 = 253458^2 + 59647^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67798722373 is a prime.

It is a super-2 number, since 2×67798722373² (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 (67798722323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33899361186 + 33899361187.

It is an arithmetic number, because the mean of its divisors is an integer number (33899361187).

Almost surely, 2^67798722373 is an apocalyptic number.

It is an amenable number.

67798722373 is a deficient number, since it is larger than the sum of its proper divisors (1).

67798722373 is an equidigital number, since it uses as much as digits as its factorization.

67798722373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37340352, while the sum is 61.

The spelling of 67798722373 in words is "sixty-seven billion, seven hundred ninety-eight million, seven hundred twenty-two thousand, three hundred seventy-three".