67091631311 has 2 divisors, whose sum is σ = 67091631312. Its totient is φ = 67091631310.

The previous prime is 67091631307. The next prime is 67091631359. The reversal of 67091631311 is 11313619076.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67091631311 - 2² = 67091631307 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67091630311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33545815655 + 33545815656.

It is an arithmetic number, because the mean of its divisors is an integer number (33545815656).

Almost surely, 2^67091631311 is an apocalyptic number.

67091631311 is a deficient number, since it is larger than the sum of its proper divisors (1).

67091631311 is an equidigital number, since it uses as much as digits as its factorization.

67091631311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 38.

The spelling of 67091631311 in words is "sixty-seven billion, ninety-one million, six hundred thirty-one thousand, three hundred eleven".