67657732327 has 2 divisors, whose sum is σ = 67657732328. Its totient is φ = 67657732326.

The previous prime is 67657732291. The next prime is 67657732361. The reversal of 67657732327 is 72323775676.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67657732327 - 2²³ = 67649343719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67657732027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33828866163 + 33828866164.

It is an arithmetic number, because the mean of its divisors is an integer number (33828866164).

Almost surely, 2^67657732327 is an apocalyptic number.

67657732327 is a deficient number, since it is larger than the sum of its proper divisors (1).

67657732327 is an equidigital number, since it uses as much as digits as its factorization.

67657732327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15558480, while the sum is 55.

The spelling of 67657732327 in words is "sixty-seven billion, six hundred fifty-seven million, seven hundred thirty-two thousand, three hundred twenty-seven".